C20 rear end identification. My '88 C20 Suburban had a 454 with 4.

C20 rear end identification can you tell me what year truck/van 8 lug rears are of close enough width and coil springs to use as a direct replacement? Customer: I just purchased a 1981 cheve c20 4x4 standard 4 speed the axles are in the front 10 bolts the castings are GM8 14030376 the rear are 14 bolt GM3 N2674 I would like to know all the information you can tell me about the axles Oct 6, 2024 · Howdy! Just started working on a 1966 C20. I did a fair amount of reading on the different rear ends in these trucks and am unsure what I have. Pics are attached. its not original. Model years and calendar years are two different animals. Oct 26, 2018 · Our 14 Bolt Axle Identification Guide Will Help You ID Your 14 Bolt Axle – Full-Float or Semi-Float, Slide-On or Drum Mount – Quickly and Easily. The 1967 - 1972 Chevrolet & GMC Pickups Message Board I have two k20s both eaton a c20 and c30 d60 diffs Sep 10, 2009 · Hey all, I bought my 66 c20 project truck. rochester carb. 14 bolt rear 3/4 and 1 ton bolt in axle visable inside the wheel full floater non bolt in axle semi floater 73 to 80 full floater most common 81 up light duty 3/4 tons had semi floater the only stock gm axles in a square i did not cover is the 1 ton dana 60 front witch the cover looks just like a dana44 but bigger and king pins instead of ball Apr 23, 2010 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Suspension: modest lowering of 71 c20 rear end GM / Chevy - Differential IdentificationShop by your differential. 10's and it ran like a scalded ape! my rear end axle housing on the pass. 73 gear in it. It has 7 bolts attaching the Backing Plate to the Axle Housing. 5 size? Mar 10, 2014 · Rear End Identification Engine & Drivetrain. In 1977 GM started using the 10-bolt in the front, but still used the Dana 44 into the 1980 model year. 63-66 is the "proper" 12 bolt rear end, with 6 bolt axle flange on the face of the drum (wheel pattern). 67-72 will bolt up, but are slightly wider overall. the van width, also like the van 14 bolt, has a wider housing and different, longer shafts. Locate the identification tags on the rear-end housing unit. Dress up your 12 Bolt or Dana rear end with our Semi-Gloss Black Powder Apr 4, 2024 · However, the most common way to identify a front or rear axle is either by the cover or the drop-out design, as shown below. Sep 17, 2017 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright May 15, 2021 · How can you identify which rear axle you have? It can be narrowed down this way:1. _____ Notes: Fits 8 lug 2wd Only, 14 Bolt Rear Axle Only, Requires Frame C-Notch For Axle Clearance, Factory Rear Swaybar Fits With Modification *FLIP KIT WILL NOT WORK ON CAB AND CHASSIS REAR ENDS*14 BOLT Trucks with STAMPED leaf spring pads will be shipped a lower saddle that welds on (See image attached, applies to 14 bolt axle only) MADE IN THE USA Decoding Rear Axle Codes. Production for next model year begins somewhere between May and September of the current year. 12 bolt rear end ID at backing plate? koolminx; Dec 12, 2024; Differential & Driveline; Replies 5 Views 486. They also included a set of wheel adapters, so the owner did not have to carry 2 different spare tires. Explore our rear differential parts for Chevrolet/GMC Trucks 1960-66. CrashBob _____ Compared to a GM 10-bolt axle (for example), a semi-float 14-bolt is a nice upgrade. If it's 5 lug, it could either be a 65-70 that's been swapped over to 5 lug, or it's a 71-72 rear. Apr 1, 2019 · Help ID this rear end Thread starter TJ805; Start date Apr 2, 2019; K10, K20, C20 Engine Size 350, 454, 6. I have a 73 K10 and 73 K20. It doesn’t affect the drivability, I’d just like to get it replaced. currently in late build 1958 Reply. My '88 C20 Suburban had a 454 with 4. I want Disc brakes and I am trying to aim for keeping the original housing. Jun 14, 2008 · Well I've always been one to feel that a limited slip rear is the best way to go and is a desireable option. Originally it came with an Inline 6 from the factory in Oshawa, Ont. The 3rd member has "C7AWE 41" cast inside it. Dress up your 12 Bolt or Dana rear end with our Semi-Gloss Black Powder 1ta : axle, full floating 1z2 : vehicle preparation, anti corrosion hot melt 200 : trim combination, cloth, very dk sapphire (0) (91) 201 : trim combination, vinyl, very dk sapphire (w) 202 : trim combination, leather, very dk sapphire (2) 203 : trim combination, leather, very dk sapphire (3) Jul 24, 2009 · Ok I have a GM rear end on a 1972 C20 Chevy 3/4ton and a new rear end cover is so hard to find it is a 10 bolt and shaped like a bowel its perfectly round is it rare or something because im trying to find a chrome one and I can't seem to find one. 56 and a th400 Sent from my iPhone using Tapatalk Pro Reactions: Buicknut and elcamman50 Buy a 1968 Chevrolet C20 Pickup Differential Rebuild Kit at discount prices. Apr 11, 2017 · The c20 and 30s, I’ll see 3. Also, it's definitely a 3. Will I have to put in a better rear end/driveshaft? Moser - Dana 60 Rear End Cover - Semi Gloss Black. If you have hubs sticking out of your rear axle, its a FF. The 10 bolt rear is only a 6 lug Count the number of bolts on the cover of your rear axle. It is 8 Lug with 1/2" x20 Wheel Mar 19, 2006 · they were available from 46-72. On my truck it did have a powerloc (G87 option code) so that option shows on the spid, but otherwise the Dana 60 was a standard axle for the truck in my case ('72 C20 402/400), thus standard axle was Dana 60 with coils. 10 or 4. Jul 27, 2019 · I have a 1972 C20 3/4 ton truck My truck is a light duty 3/4 ton It came with a 350 engine and a th350 trans with a dana 3/4 ton rear end the rear end had the type of drums that slide off I was told there floating drums instead of the One you have to pull the axles. 5 inch. Jun 12, 2014 · Both the 12 and 14 bolt SF axles come in either 6 or 8 lug axle configurations. This code will tell you the ratio, whether it is posi or not, any special notes and what plant it was made at. Feb 14, 2017 · Good morning all! Having difficulty identifying the rear end I'm rebuilding. crankshaftcoalition. Retrieved from "https://www. On a semi-float axle, the axle shaft terminates at the wheel mounting surface. It has 3. Gonna pull the. mostly highway back and forth to work, but sometimes around town. Moser - Dana 60 Rear End Cover - Semi Gloss Black. This information should help you locate the Auburn Gear differential model appropriate for your vehicle. 875" 12 cover bolts, 8 ring gear bolts, 29-spline axles Nov 23, 2015 · How do you identify a Dana 60 Rear End? I have a 1970 GMC C20 long bed with leaf springs in the rear. 0 Sep 11, 2018 · As a stop gap until their 1/2 ton front axle was ready, the Napco Power-Pak was shipped with a 3/4 ton front axle with 3. Just finished grinding down all the rust and finally found some numbers stamped. I have gasket maker, brake clean, gear oil 80w-90. The previous owner swapped the I6 for a 327 smallblock motor. 5" - and the differences in setup for ea Jun 22, 2020 · Depending on the GVW of your truck it might be a 14 bolt Full Floating axle, or it might be a 14 bolt semi-floating axle (much more likely in '85 on a C20). Positive identification of the Corporation (Chevrolet) axle versus the Dana axle is necessary for proper selection and ordering of service replacement parts. If the end of the axle is flush with the wheel, is a semi-floating axle. This code consists of 6 or 7 digits and characters indicating the stock gear ratio, month/day of assembly, and the assembly plant. I believe it should be a 4. According to the Dana/Spicer Corporations' "Roadranger" Illustrated Parts List, there are two identification tags, one located on the driver's side differential carrier and one on the passenger side of the axle housing. A 72 3/4 ton truck with a Dana 60 rear aint going to be a highway economically friendly cruiser. In these years this was the only way to determine rear axle components, since there were multiple axle suppliers. Currently running 4. 5", 10. the housing and shafts interchange on the srw and drw, but the hubs are different (like the 14 bolt). Bruce Feb 27, 2009 · Author Topic: 86 c20 rear end (Read 7863 times) Cowman85. These are just option codes for the body and chassis. 90 gear set for the Eatons, but it seems to be nothing but "rear end vaporware!" It may be that the assembly plants out West used one rear end while those in the East used another for shipping reasons or whatever. 08's come out of my truck they will be going in a friend's 1980 k10 to replace the 2. 1958-1970 Chevy Rear Differential code Identification Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. Dress up your 12 Bolt or Dana rear end with our Semi-Gloss Black Powder Nov 17, 2016 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board '69 C20 Change Trans vs Rear End, or Both Mar 16, 2009 · Rear end identification Engine & Drivetrain. The 59-64 axles May 1, 2013 · Re: 85' C20 rear end ratio question « Reply #2 on: May 01, 2013, 08:20:56 pm » thanks for the welcome !! current mpg around 9 or 10 i think with stock 350 with th400 tranny. General Motors has a wide range of front and rear ends! We carry everything from the 7. 56 which makes the motor wind pretty tight @ 65 + mph. In the wet of England (like the wet of Vancouver), a limited slip can do 1 of 2 things for you depending on the power and traction you have: 1) either get you going without the hassle of 1 tire spinning or 2) kicking the rear end out when you don't want it to when the tires break loose. 2 Detroit. 10 is 10 bolt,12 is 12 bolt and 14 is 14 bolt. What do the cast numbers on the diff housing mean? top line - 373 next line - 25899. Mar 2, 2016 · I am rebuilding a 1966 Chevy C20. Jan 30, 2015 · A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. The Drums just SLIDE OFF, the Axles do not need to be removed to take off the Drums. I looked and the only numbers I came up with were 3883379 cast on the carrier housing front/drivers side. Sep 17, 2022 · HOW TO FIGURE GEAR RATIO OUT WITHOUT, TAKING IT APART - Square Body Chevy C10 Build. 5 %âãÏÓ 80 0 obj > endobj 109 0 obj >/Filter/FlateDecode/ID[2C530DEA845F0E73B7042807965BE75D>61849D055928D14B958872F13113DBC8>]/Index[80 40]/Info 79 0 R Nov 19, 2014 · The top of the spring mounts on the C20 will be below the frame, and have a very stiff coil that is short (10-12" stiff because they go onto a A-arm). Location: Main Index » Forum Index » Chevrolet Cars 1949-1954 » 1949-1954 Chevys » 53 Chevy Rear End and Axle Identification FusionBB™ Version 2. 25" IFS front end parts, to the large 11. (as it bolts up to everything right!) Is there a way to make or rebuild that rear end into a 4:10 posi 1/2 ton (5 bolt pattern) with disc brake kit or is the tubes for the axles going to be to big? You would need to measure from the axle flange to the other axle flange (where the wheel bolts on) on both the dually and your current rear end to see if it will fit inside your truck. Semi Gloss Black to make your rear end look amazing. 73 most common but some 4. Nov 19, 2013 · I climbed under the truck this afternoon and coudln't find the axle code on the tube. Dana axle identification is located on axle tube between Steering Shock Absorber Bracket and the Carrier. 73's. no shortening required. side has all the RPO info The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. (standard for most C-20's with automatic transmissions back then) I know that they made that same diff for the '67-'72 C-20s (GMC and Chevy). 67-70 will generally have a 6 bolt wheel pattern, 71-72 will have 5 bolt wheel pattern. 1958-1970 Full size Chevy rear differential identification chart. The number read as follows: BR3 G147 2. SHOP SPEAKERS: https://www. Both of these are semi-floating axles. Jan 26, 2015 · I need to replace brakes, axle seals, possibly axle bearings and eventually go to 3:73 ratio. com/dp/B0BKG9RKJW HATS & T-SHIRTS: htt Learn how to quickly identify the three different variations of the GM 14 Bolt differential - the 9. User Info. Not me. Do I have to change the whole thing or can I just change the axle shafts and outsides, drums etc. I appreciate any help. 5" and 11. The rugged, reliable, and efficient Chevy 12-bolt has established itself as the preeminent rear differential for GM muscle cars since its debut in 1965. However, over the last 50 years, there is a chance it had been swapped out. GM. Axles were SPECIFIC to their axle housings: 55-56 only fit 55-56 housings, 57 and 58 axles only fit 57-58 housings (57-58 axles used a ONE YEAR ONLY thin bearing FOR 57 and for 58 they used the thicker bearing that was used up through 64). You could have a ( corp axle, or a Dana axle) ( 10 bolt or a 12 bolt ) All this information is in the axle code on the axle. A Chevy 3/4 ton pick-up may have a 14 bolt semi-float rear axle or a 14 bolt full-floating axle. It is 8 Lug with 1/2" x20 Wheel Feb 3, 2004 · the eaton also has 10 bolts holding the diff cover on, you must have a corporate 14 bolt unit. rear differential cover today flush and fill up. Feb 25, 2020 · Re: 1977 C20 front axle identification That is a Dana 44. The axles are definitely 31-spline. Send Private Topic View Profile. I have been doing some research and found the engine in the truck is NOT the original one as is a 350 from a Buick (1973 GS) All Dana axles have a Bill of Materials (BOM) number stamped into the long axle tube that can be used to look up many of the axle's important details including the gear ratio, ring gear rotation, differential type and spline count, as well as a complete list of replacement parts. com: User Name: Remember Me? Password: 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban 11-30-2015, 12: May 22, 2021 · The Dana 60 was not necessarily an optional rear axle. However, the smaller 10-bolt unfairly gained the reputation as a weak […] Decoding Rear Axle Codes. amazon. The only rear end you will find in a 63-66 1/2 ton is the truck 12 bolt. Bob Mar 19, 2013 · Ford 9" rear end identification? I pulled the axles and opened the rear end. Every single truck that I have personally seen has an Eaton axle/diff. 7. Commonly 7 or 8 Chevy 10- and 12-bolt axle assemblies have been standard equipment on GM passenger cars, muscle cars, and trucks for decades. Rear brake drum backing plate - Finding the number etched in2. The rear axle identification code is stamped on the axle housing on the bottom, front left, or front right axle tube next to the carrier housing or about 8 to 12 inches from the backing plates. there are alot of options available for it, as its more common than any dana rearend. Browse our Dana axle identification database at Torque King 4x4. This code consists of 8 or 9 digits and characters indicating the stock gear ratio, month/day of assembly, and the assembly plant. It is an original diff but they are noisy and I have opted for a quiet open diff for Jun 30, 2021 · This would be true if he were using stock 72 wheel offsets , the question was for 2005 wheel offset, my rear axle is mocked up at the width of a 2004 using spacers on the stock rear which is approximately 3" narrower than front on these old trucks . On some tags, the first 2 digits don’t appear on the tag, but they must be used to identify the axle. SquareRoot. Front axles on 4 x 4s are marked on the front of the left axle tube. 1 ©2003-2006 InteractivePHP, Inc. The 64 axle is basically the same except for having 17 spline axles and the panhard bar mounts on a bracket welded on to the passenger side axle tube. Found these numbers (whatever they mean) on the face of the pinion is 3766686 and D3 with a wheel looking sign, then on the right side of the face is the same number with the same wheel looking sign and other number can't quite make out. Moser rear end cover for 12 bolt rear ends. Learn more about Dana front axle identification online today at Torque King 4x4. Keeping my friends in the loop of the C20 rebuild. 25 ratio. 68 1968 Chevrolet C20 Pickup Differential Rebuild Kit - Driveshaft & Axle - Motive Gear, Spicer, Front, Rear - PartsGeek Nov 23, 2015 · How do you identify a Dana 60 Rear End? I have a 1970 GMC C20 long bed with leaf springs in the rear. I have both rear ends and they are both 14 bolt Corp GM with 10 1/2 ring gears. Chevelle Rear Axle & Differential Identification Decoding Differential Casting Numbers The differential casting number can be found in the webbing area surrounding the backside of the carrier housing next to the left or right axle tube. AMC 20 CHRYSLER 8-1/4” , 8-3/8” CHRYSLER 9-1/4” CHRYSLER 8-3/4” DANA 70 DANA 80 DANA 30 DANA 35 DANA 44 Mar 16, 2009 · I am trying to identify the rear axle in my '67 C20 Camper special to determine if I can get a taller gear set put in. the glove box i replaced a couple years %PDF-1. axle housings DANA FORD REAR AXLE IDENTIFICATION GUIDE This guide can be used to help identify your rear axle make/model. Our Dana axle identification numbers will help you order the parts you need. Registered Users; Posts: 121; 86 c20 rear end Check this out for transmission identification: Dec 9, 2023 · Rear end diff identification. Jul 9, 2008 · REAR End - Axle Identification Help The 1967 - 1972 Chevrolet & GMC Pickups Message Board 1968 c20 lwb 327(orig motor)/np435/eaton 4. 10 bolt truck rear ends were not available until the late 70s - 80s. Available for Chevy 12 Bolt car and Dana 60 rear ends. Tried search the web, but not able to narrow down year, gear ratio, etc. In reading other forums, I have seen mention of a 3. I can pretty much guarantee that you have the front GM 10 bolt There is no such thing as a 12 bolt FF Apr 13, 2018 · When it comes to GM muscle car purists – and enthusiasts searching for the ultimate Chevrolet rearend – the 12-bolt rearend is considered the top of the heap in regards to a high-performance axle assembly. Anybody have any info on putting a dually rear end out of a 86 1 ton chevy into a 3/4 ton chevy. Never worked on one of these old Chevy trucks so I'm prepared for a learning curve. The guy that I got it from claims that it is a 1965 12 bolt rear axle assembly with new 3:08 gears. It is a Full Floater with 12" Drums. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. May 29, 2018 · 1970 c20 engine identification transmission Jump to Latest 5. Feb 19, 2018 · That is, a 1964 center section could be swapped into a 1955 axle housing and vice versa. 5" rear end parts for 1-ton trucks. AZ3 is the axle build code stamped at the axle assembly plant identifying the axle not an RPO. Choose top quality brands Motive Gear, Spicer. Dec 13, 2024. The SRW is 65", DRW is 63", and the van is huge (70" or so). 10 w/posi 230 CID 6 Cyl - Series C10, K10, C20, K20 Year Engine ID Codes 1963-64 N, ND, NE 1965 TA, TE, TG 235 CID 6 Cyl - Series C10, K10, C20, K20 Year4 Engine ID Codes 1960-62 J, JB, JC 250 CID 6 Cyl - Series C10, K10, C20, K20 Year Engine ID Codes 1966 TA, TE, TF, SV, SW, SX 292 CID 6 Cyl - Series C10, K10, C20, K20 Year Engine ID Codes Dec 30, 2016 · I'm with Mongo, the seller's most likely referring to poor mileage and high rpm at speed. All of these axles take different parts so we need to properly identify the axle you have to get you the right part. Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. We make it easy to verify your exact rear end by providing specs and year, make, and model applications for Moser - Dana 60 Rear End Cover - Semi Gloss Black. Could they have put it under the spring mount? I REALLY don't want to unbolt the springs to check it. I am trying to buy a rear end for my 1970 Chevy C20 truck "body type TPK" and have failed once already (I ended up with Q&A: 1970 Chevy C20 Rear End Identification - Find Chevy 3/4 Ton Rear End for Sale Oct 23, 2020 · C20 Engine Size 350. If you are looking for the best overall performance on a 1/2 ton truck (assuming the same gear ratio between the the 14 bolt and the 12 bolt), then you would want the 12 bolt. In other cases, people will swap in a 12 bolt, or upgrade to 3/4 ton running gear for strength. 2 and 8. Now the rear end in this picture looks exactly like the ‘69 that I was talking; Nov 30, 2015 · Eaton Rear End ID Question Web 67-72chevytrucks. When the 3. and usually running 70, or 65 mph on trips to work. John, the side gears certainly are splined on center section and I’m sure they are on any rear end that will interchange with it. 90 ring and pinion installed to match the 1/2 ton rear axle in the truck. e. Dress up your 12 Bolt or Dana rear end with our Semi-Gloss Black Powder Sep 11, 2020 · If it's 6 lug, that's a 65-70 rear end. Ideal for revamping and personalizing. i have seen 3 different widths: SRW, DRW, and van. Today we fix the rear axle of this CUMMINS SWAPPED CHEVY C20 by swapping out the Dana 70 for a GM 14 bolt FF that provides the perfect spacing to use our ori Customer: i have a 1963 c20 with a very high bear ratio in the rear end. Please select a rear end that matches your vehicle below. Some enthusiasts feel the 9-inch is a comparable replacement – and an acceptable swap into a Chevrolet muscle car – but when DISCLAIMER: These videos show my way of doing things. Don't necessarily follow my advice, I could be wrong. Post: Rear Axle ID 78 C20 (Topic#227196) Brother65 Senior Member Posts: 1147 Loc: Gainesville Missouri Reg: 06-15-02. Traditional BOM’s are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. I know to count the bolts on the cover but how do I find out by the numbers if it’s a 9. It has what looks to be an original 10 bolt rear end and a skinny 2 piece driveshaft. Dec 21, 2009 · Can someone help me identify what this rear end is from, gears, will it fit in my 69 Convertible? Measures 55 1/2" from end to end R6 Stamped on left side tube. any helpful tips on this job is much appreciated Dana design axles from 1977 thru 1980. I know 11-41 is the 373 (GT4). AMC Axle Assemblies Rear Differentials AMC Model 20, 8. . I have a limited slip in the rear end. 3K views 5 replies 3 participants last post by quig451 Jun 14, 2018 Post: Rear end identification (Topic#24117) 52_chev_261 Senior Member Posts: 295 Loc: SIERRA VISTA AZ Reg: 10-05-02. Explore our rear differential components for Chevrolet/GMC Trucks 1967-72, Blazer and Jimmy 1969-72, Suburban 1967-72. Rear ends with measurement designations are named after the diameter of the ring gear, i. To begin with it's a 1963 C10 swb, it has a 1968 250 inline six and a 1984-1986 T5 transmission. You can spot a semi-float 14-bolt axle by counting the lugs (if it’s a six lug wheel, it’s a semi-float), or by looking at the wheel surface. com/wiki/index. For all trucks, 1980 through 1987, the rear axle numbers are on the front of the right rear axle tube inboard of the upper control arm bracket, except for Dana-built axles, which are stamped on the rear surface of the right axle tube. 10s and then camper special duallies usually came with either 4. The 500-600 HP is what I'd Like to do to my BBC if the budget permits, when I finish my current project. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain: Rear end identification I am tired of the clunky positraction rear differential in my 1971 C20. Both the 63-66 and the 67-72 12 bolt axles will need a new set of spring perches in order to fit onto the leaf spring rear end that the 73-up use. If the budget doesn't allow, then it'll be I still need the code off the rear axle. The trucks equipped with solid axle coil springs have much lighter coil rates and have much longer springs mounted above the frames. Jul 2, 2021 · Axle Identification. Classic Industries offers a wide selection of Rear End Components for your 1983 Chevrolet C20. Feb 19, 2016 · How can you identify a 373 10 bolt 6 lug rear end 9. Classic Industries offers 1983 Chevrolet C20 Rear End Components. The 60-62 had an Eaton 1/2 ton rear, and the 3/4 ton rear end was the Eaton full floating rear end. 06-12-17 08:02 PM - Post# 2695735 In response to JOD I was lucky enough to have found an original '66 Eaton 3/4 ton rear axle with 410 gears. You can find a code stamped on the axle housing to help confirm it, but there could have swapped the gears in the housing. So, there will not be a visible axle According to Nasty Z28, the GM/Chevrolet 12-bolt rear end was manufactured from 1965 through 1971. Drive Axle Identification. Each Dana axle identification chart is free to use and easy to download. can I spray brake clean on gear and in case with cover offwon't hurt anything I'm assuming. 5. It has a 10 Bolt rear end. also, if its a 14 bolt it should have the filler plug on the side of the pumpkin, if its a dana it should be on the diff cover itself. Dec 12, 2018 · So, the guy I bought this truck off told me the rear end will eventually need replaced; it makes a noise when you drive. On the right side (top) is this number MH1104. 10 gear. it seems that no one makes the gears for that year bu ti have been told i can use certain year 3/4 ton van rears as direct replacements. Well Scott, that thar picture in my first post is of a completely stock original 1950, 3604. You are responsible for your actions. The rear ax Apr 8, 2021 · 72 K2500 Rear Axle Identification. Any help would be greatly appreciated. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain: Rear End Identification Jun 12, 2011 · That will be the third rear end running under just this one particular truck. K10 truck has Since it doesn’t have the option listed, it is the standard axle ratio. After that, GM instituted the "Corporate" rear end, a 10-bolt rear end that integrated feartures of both the 10- and 12-bolt rear ends. php?title=Rearend_identification&oldid=3487246" Jan 11, 2017 · GU4 & G80 are RPO (Regular Production Option) codes for the actual chassis. does resemble a dana axle. while I have cover off gonna see what rear end it is along with cleaning cover and giving it a fresh coat of paint. my 2004 wheels fit both front and rear wheel wells the same, which was the goal when I find a 2004 to swap out. pvstwxv dpiboi yzhf higk gzsk kssra ipd jqgzbli wgrxmny qxomi lzae hhsic todbaznuu zjd obnryga