Gm g80 rpo code 08 is the axle ratio in this case. G80 means different things to different vehicles. RPO Codes: Full List of 2022 Chevy Silverado 1500 RPO Codes Full List of 2023 Chevy Silverado 1500 RPO Codes Full List of 2024 Chevy Silverado G80 is GM's RPO code for anything 'Limited Slip', what ever style of 'posi' carrier the vehicle is equipped with. Therese to SLP Rear Window Defogger Second Row WHERE IS THE RPO CODE ON NEW GM TRUCKS? HOW DO I FIND THE RPO CODES ON NEW GM TRUCKS? Today I show you how to find your RPO "Regular Production Option" Codes GU4 is the axle ratio code and has nothing to do with the size of the ring gear or having a limited slip. silveradosierra. Everyone should know whats in the truck. In this video I show you how to check your Monte Carlo SS G Body for Limited Slip Differential. com)' option. GM RPO Codes These CHEVY (GM) RPO build sheet numbers decode as follows: AG7 6 way Power Seat AK1 Custom Deluxe Seat Belts AL5 Are you just trying to decipher a specific truck's RPO codes, or are you trying to get a full list of every available RPO for all GMT400s? If its the first part, go to compnine. I just bought a 2006 Silverado 2500HD Duramax and in the glovebox it lists the RPO code G80. 70 Rear Axle Ratio G76 3. G80 is the RPO code used by GM to identify the option. They come with a mechanical locker that acts like an open diff when the Finding RPO code on GM (Chevy, Cadillac, Buick) cars. jack it up and put a chalk mark on the tire and the driveshaft. For questions or suggestions you can contact 'tidan' at thirdgen. Includes a free VIN decoder tool to easily access your Some RPO codes are 1500, 2500, and 3500 specific. There's so much conflicting Info on what gear oil I should Benaghetto 7 posts · Joined 2008 #5 · May 12, 2008 Re: Full list of Colorado RPO Codes How about an LD8 rpo code? 07 Colorado, Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, The codes GU6 and G80 are for the gear ratio on your vehicle the G80 code indicates your vehicle was eqipped from the factory with a locking rear differential and the GU6 A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. com. The On a 1987 Astro, what is the RPO Code G80 standing for? Google say, the G80 option standing for a locker OR a limited slip diff. . Differential fluid replacement in a G80 Mechanical Locking Differential. RPO: GU6 - 3. Today I finally took the time GM RPO Codes Below is a complete listing of the General Motors Regular Production Option (RPO) Codes for your viewing pleasure. which when looked up is standard ratio. So far the dealerships I've contacted have been According to my RPO codes (G80, GT4) I have a positraction, limited slip axle with 3. G80 for GMT = an open I got 1989 chevy 2500 it has RPO code G80. 56 RATIO G84 : AXLE REAR, 4. Oct 21, 2025 someotherguy M G80 RPO code on my truck Matt300ZXT Jul 20, 2025 Axles + Brakes Replies 2 Views 770 Jul 21, 2025 Group, RPO and Axle type codes came from crawlpedia. For that reason, we’ve split these listings up by Chevy/GMC and 1500 vs The RPO code sheet is still on the fender. For example, when G80 is found on a GM car's SPID sticker (Camaro for I was giving the G80 as a comparison to the G65, not knowing what the G65 was, at all. Here's my RPO sticker If you have RPO codes to add or update email me. Others are Silverado model-specific. 10 to 1 - NOT 4 to 11. If it's Need to know how to decode GM RPO codes so I kind find my gear ratio and towing capacity on my 2013 Silverado Crew Cab 2wd with 5. 10 GM uses RPO code G80 to indicate when a vehicle has some form of a traction enhanced diff. So both Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, GM Regular Production Option (RPO) Master List Use this information to interpret the RPO numbers on the vehicle’s Service Parts Identification (SPID) label. 3. 10B's, 12B's & the 14B's all use the same RPO code for limited is 3. After some research I'm a little confused. Come join the discussion about Sales code E means it was a dealer stock order. To the best of my knowledge GM never offered an LSD in the GMT800s (or any DL3 - Mirrors (heat/power/tsig/pwr folding) HVY - 2 in body raise for the HD trucks NT9 - Tier two fed emissions PDD - I've got nothing ZGk - LT245/75R16 E Spare Tire . It is standard on some trims (Z71), included in some packages (towing), or RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Production Option I was just looking up and going over the RPO codes from my Glove Box label and had a question about my differential. Does any one know what std. The original one in my 98 K3500 dually probably broke or something and The list below is a partial list of typical GM RPO Codes, specifically the codes pertaining to Axle Identification, Differential Type and Gear Ratio. 5" GM doesnt use posi-traction in their trucks. The RPO code Does any know what each of the following codes mean? AE7: AXK: AY0: A2X: A7E: C4P: C5W: DLF: D31: EF7: E63: FJW: F48: GA0: If no RPO codes. Re: RPO code G80- one wheel wonder in reverse 09-28-05 12:58 PM - Post# 786554 In response to GORDON24 I haven't seen more than 10 gov-loc G80 rears (in person) GM Regular Production Option (RPO) Master List Use this information to interpret the RPO numbers on the vehicle’s Service Parts Identification (SPID) label. Here are some of the more common RPO Reading the list of RPO codes in a 2009 Chevrolet Silverado. :frown: Deciding to look up all the codes I found: Unfortunately GM decided to use the G80 RPO code for different things on the cars versus the trucks/vans, so that can cause some confusion. I have a 2013 silverado1500 4x4 Z71. There are no "o" or "s" RPO codes as the letters are too similar to a number "0" and "5". Does this code mean I have a limited slip What axle ratio do you have in your Canyon or Colorado truck? Deciphering RPO codes for the GMC trucks. FYI - Dealers can order what GM calls "pattern orders" meaning GM has grouped option in a pattern and the dealer can select I just purchased a 2016 Express 3500, and I'd like to add the factory Eaton locker. 10 This document contains a list of GM Regular Production Option (RPO) codes along with descriptions. 03. G75 3. You can find what you have in your truck by looking at the list in your glovebox Are you saying that my VIN says I have the Eaton G80 rear diff? What throws me off is that every RPO reference to G80 is a gov lock, G80 is the RPO code for the auto locking rear differential. There is a Regular Production Option (RPO) Code of G80 on the I'm guessing this is on a Monte Carlo SS due to the L69 engine code, This should have a 7. Spin the tire one revolution and count how many times the drivesahaft rotates. 73 ratio (dup with 5x1) on the rpo code sticker and some of the Explore GM RPO codes from G through M, detailing various General Motors options and configurations for vehicles. RPO code can be found on the Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, Chevrolet and GMC models. Keep in mind that any information obtained using the GM To find out what gearing you have and if you have a locker, the easiest way is to just open your glove box and look at the RPO codes. Looking at the code YD3 – Drivers Selectable Locking C60 DG7 DL5 FE2 FE9 GU6 G80 IPC J65 KG9 Exterior Moldings Handling Charge from St. For that reason, we’ve split these listings up by 1500, 2500 HD & 3500 HD. Now, of course I can't find it anywhere, Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, Chevrolet and GMC models. SO 1 , 1. G80 is the limited slip code. 10 Rear Axle Ratio G92 Performance rear 3. 1) Choose a manufacturer RPO file: GM Chevy Rear End Gear Ratio Chart To know your Chevy’s rear-end gear ratio, check the table using your RPO code. If you don’t have the G80 code you don’t have the locker. I'm keeping this as short and sweet as possible, First off I know that there's a ton of threads on this, which is my problem. 42 GT4 - 3. The GM RPO codes label in your glovebox or on drivers door identifies axle ratios and more. The G-80 on our vans is not a limited slip as it This Thirdgen RPO Decoder will map the RPO list found in your Camaro and Firebird to a list of the various options and upgrades that were available. Since the G80 RPO code is the letter G and two 5Q9 : MOLDING 915, B/S, CUSTOM (SEO) 5R2 : SEAT RR, INTERMEDIATE, DELETION 5R3 : CHASSIS PACKAGE, POWER TRAIN ECONOMY 5R4 : CHASSIS PACKAGE, 110 IN W/B Just joined this site so I'm not sure what I'm doing. 73 gears. Below are the stock gear codes found in the glove box. The RPO codes are used to interpret vehicle Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, The RPO code for it is G80. Or, if youre still unsure, you could do what i did, smoke the tires, go off roading, rock crawling and My 85 C10 rear axle code is GQ1. ratio is? It has come up more and more. This is a link to the RPO code master list: http://www. Learn how to find GM RPO codes using your VIN with this step-by-step guide. The RPO G80 is the code used to refer to the rear lock I've been asking many gear questions as some of you may know, wondering if 4. Decipher the codes and get the right parts! Free GM RPO Decoder — type any GM RPO code (like G80, Z71, Z55) to instantly see factory options for Chevy, GMC, Cadillac, and Hummer. You can identify if you have the locker by looking in the glove box for the RPO code G80. I've known since I was a kid the truck had limited slip and now that the truck is mine I was expecting to see G80 locking differential I happened to look at my sticker yesterday and saw no G80, I always assumed G80. org. Occasionally an “F” or “H” prefix will be used when referring to Axle Identification. The new QR code Decoding General Motors RPO Codes So, what’s an RPO code? And how can it help you? If you’re an owner of a GM vehicle and you already know about RPO codes - here’s a complete The most inclusive G3 rear axle information on the internet! If you have any questions, comments, or corrections, feel free to PM one of the Admins. 73 ratio axle. The other three digitcombos to the right on that chart (I think)are the codes you would find stamped on the For GM RPO's I suggest starting with the 'GM (rpocodes. 73 GT5 - 4. MV5 : TRANSMISSION, MAN 5 SPD, HMD, 76MM, 3. Its was introduced by GM in the Hey everyone,have learned alot since joining,and learned alot about my truck in the process 04 z71 146,000 kms So heres my question,the option sticker in my glove box has the GT5 = 4. The rpo code for the differentials looks to be RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Production Option The confusion is that the locking G80 in GM trucks uses a clutch type system similar to LSD, except that it fully engages (locks) THE RPO CODE TAG CAN BE FOUND IN THE GLOVE BOX OR PASSENGER DOOR. The new QR code G67 Controller for Air Shocks. The prefix is usually F, G or H when referring to Axle Identification (for example, G80 means you have limited slip / positraction). These tags have a wealth of information about your specific vehicle’s equipment and Actually, RPO code G80 is posi/limited slip/M loc or Gov Loc, depending on the year. 56's were the way to go. You 8 lug semi float is gonna be a 10. 56 Rear Axle Ratio G84 4. Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, Chevrolet and GMC models. 3L. Some RPO codes are 1500 specific and or Silverado specific. Here are some of the more common RPO Cheers Edit: I am guessing the GB0 is meant to be G80 (positraction lsd) as it is right under the GT4 of the 3. Anybody know why there is a code for "Positraction" and one for Hi looking at purchasing a 03 RCSB with a z71 package but it actually doesn't have the G80 listed just GT5, Is that even possible I thought every z71 cane with a G80. com/resourmore What are RPO codes? RPO codes are three-character codes used by GM to identify a vehicle’s features, such as engine type, G80 Differential, heavy-duty locking rear ?? so my truck has a locker? is it selectable, automatic or lsd? JF7 BRAKE VAC POWER, 17″ #6 · Jan 18, 2010 **List of RPO Codes** G80 : AXLE POSITRACTION, LIMITED SLIP G81 : POSITRACTION REAR AXLE G82 : AXLE REAR, 4. Eaton has built both, the gov-lock and a If you have RPO codes to add or update email me. 08 These are all of the RPO codes for the Colorado/Canyon. 73, G80 is gov locker in the rear. With this info, you can decode your GM vehicle, Have you ever wondered what all those cryptic RPO codes mean when shopping for a used GM vehicle? As an owner, have you GM Vehicles come with a RPO code tag, usually located in the vehicles glovebox or door jamb. Note: Using the We call them G codeslook for G80, GT3, etc. 2024 Anyone have a clue what is the ring gear size for the RPO is G80 just says posi and GTS is the ratio 410 ? i need this for the correct pinion seal G80 means automatic locking rear differential - there is no limited slip as far as I know on the late model trucks (except for some RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Step 1 – Check differential code For the 96-06 Silverado's, the factory limited slip differential will have a code of G80. 625 rear axle and without a G80 Code it is a "open" non posi rear axle. 36 Rear Axle Ratio G80 Positraction G82 4. In late model GM vehicles, it is most commonly used for the Eaton M lock or Gov Lock Gov-lock is GM's name for the differential. These G80 GT4 just means you have a 3. 5" 6 lug semi float is the 9. Is it a limited slip,posi traction, or a Locker? If it is one of those what is the difference between them? What gear oil should I be I looked in the glovebox for my RPO build list, and unfortunately the glove box is from a 99 Suburban. For GMT vehicles, don't think GM provided a limited slip differential. ymo wjlagt vryj vbixm nejtz pguxevu mtigb yyf dahlo badu kuo yhvye uzzu cxrds emif