If you're diving into a rebuild of your GM 10.5-inch 14-bolt truck differential, you’ll want to check out the USA Standard Master Overhaul Kit. Trust me, this kit has everything you need to wrap up your install without second-guessing yourself.
This isn't just any kit; it’s specifically designed for those classic rides from 1988 and earlier. You know, the ones that really make you feel connected to the road. Inside, you'll find high-quality Koyo bearings and races, which are known for their durability and performance. That means you can hit the trails or the highway with confidence, knowing your setup is solid.
What’s included? Well, it’s a complete package. You’ve got your carrier bearings and races, pinion bearings and races, and even a pilot bearing. Plus, they’ve thrown in a pinion seal, a full shim kit, a pinion nut, and a crush sleeve. And let’s not forget the thread locker, marking compound with a brush, and a gasket—everything you need to make sure your differential is running smoothly.
And just to ease your mind a bit, this kit comes with a one-year warranty against manufacturer defects. So, you can focus on getting your truck back on the road without worrying about what might go wrong.
As for fitment, this kit is compatible with a whole lineup of classic Chevy and GMC models, including:
This kit isn't just a bunch of parts thrown together; it’s a thoughtful selection of components that make your rebuild easier and more reliable. So, if you're looking to get your classic truck back in top shape, this overhaul kit is definitely worth considering.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Chevrolet C10 Suburban | 1973-1974 | Base |
| Chevrolet C10 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet C10 Suburban | 1975-1980, 1982-1983, 1986 | Silverado |
| Chevrolet C10 Suburban | 1975-1980, 1982, 1986 | Scottsdale |
| Chevrolet C10 Suburban | 1981 | Deluxe |
| Chevrolet C10 Suburban | 1981-1983, 1986 | Custom |
| Chevrolet C20 | 1975-1980 | Custom Deluxe |
| Chevrolet C20 | 1975-1983, 1986 | Scottsdale |
| Chevrolet C20 | 1975-1981, 1986 | Cheyenne |
| Chevrolet C20 | 1975-1983, 1986 | Silverado |
| Chevrolet C20 | 1981-1983, 1986 | Custom |
| Chevrolet C20 | 1981 | Deluxe |
| Chevrolet C20 | 1986 | Base |
| Chevrolet C20 Pickup | 1973-1974 | Base |
| Chevrolet C20 Suburban | 1973-1974 | Base |
| Chevrolet C20 Suburban | 1975-1980, 1982, 1986 | Scottsdale |
| Chevrolet C20 Suburban | 1975-1977, 1979-1980, 1982-1983, 1986 | Silverado |
| Chevrolet C20 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet C20 Suburban | 1981 | Deluxe |
| Chevrolet C20 Suburban | 1981-1983, 1986 | Custom |
| Chevrolet C2500 | 1988 | Cheyenne |
| Chevrolet C2500 | 1988 | Base |
| Chevrolet C2500 | 1988 | Scottsdale |
| Chevrolet C2500 | 1988 | Silverado |
| Chevrolet C30 | 1975-1980 | Custom Deluxe |
| Chevrolet C30 | 1975-1982 | Base |
| Chevrolet C30 | 1975-1981 | Cheyenne |
| Chevrolet C30 | 1975-1983, 1986 | Silverado |
| Chevrolet C30 | 1975-1983, 1986 | Scottsdale |
| Chevrolet C30 | 1981-1983, 1986 | Custom |
| Chevrolet C30 | 1981 | Deluxe |
| Chevrolet C30 Pickup | 1972-1974 | Base |
| Chevrolet C3500 | 1988 | Silverado |
| Chevrolet C3500 | 1988 | Scottsdale |
| Chevrolet C3500 | 1988 | Cheyenne |
| Chevrolet G20 | 1975-1983, 1986-1988 | Chevy Van |
| Chevrolet G20 | 1975-1983, 1986-1988 | Sportvan |
| Chevrolet G20 | 1975-1983, 1986-1988 | Beauville |
| Chevrolet G20 | 1978-1981 | Nomad |
| Chevrolet G20 | 1983 | Bonaventure |
| Chevrolet G30 | 1979-1983, 1986-1988 | Sportvan |
| Chevrolet G30 | 1979-1983, 1986-1988 | Chevy Van |
| Chevrolet G30 | 1979-1983, 1986-1988 | Hi-Cube |
| Chevrolet G30 | 1979-1983, 1986-1988 | Beauville |
| Chevrolet G30 | 1983 | Bonaventure |
| Chevrolet K10 Suburban | 1973-1974 | Base |
| Chevrolet K10 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet K10 Suburban | 1975-1980, 1982, 1986 | Scottsdale |
| Chevrolet K10 Suburban | 1975-1977, 1979-1980, 1982-1983, 1986 | Silverado |
| Chevrolet K10 Suburban | 1981 | Deluxe |
| Chevrolet K10 Suburban | 1981-1983, 1986 | Custom |
| Chevrolet K20 | 1975-1980 | Custom Deluxe |
| Chevrolet K20 | 1975-1983, 1986 | Scottsdale |
| Chevrolet K20 | 1975-1983, 1986 | Silverado |
| Chevrolet K20 | 1975-1981 | Cheyenne |
| Chevrolet K20 | 1981 | Deluxe |
| Chevrolet K20 | 1981-1983, 1986 | Custom |
| Chevrolet K20 Pickup | 1973-1974 | Base |
| Chevrolet K20 Suburban | 1973-1974 | Base |
| Chevrolet K20 Suburban | 1975-1980, 1982, 1986 | Scottsdale |
| Chevrolet K20 Suburban | 1975-1977, 1979-1980, 1982-1983, 1986 | Silverado |
| Chevrolet K20 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet K20 Suburban | 1981 | Deluxe |
| Chevrolet K20 Suburban | 1981-1983, 1986 | Custom |
| Chevrolet K2500 | 1988 | Silverado |
| Chevrolet K2500 | 1988 | Cheyenne |
| Chevrolet K2500 | 1988 | Scottsdale |
| Chevrolet K30 | 1977-1983, 1986 | Scottsdale |
| Chevrolet K30 | 1977-1983, 1986 | Silverado |
| Chevrolet K30 | 1977-1981 | Cheyenne |
| Chevrolet K30 | 1977-1980 | Custom Deluxe |
| Chevrolet K30 | 1981 | Deluxe |
| Chevrolet K30 | 1981-1983, 1986 | Custom |
| Chevrolet K30 Pickup | 1972-1974 | Base |
| Chevrolet K3500 | 1988 | Cheyenne |
| Chevrolet K3500 | 1988 | Scottsdale |
| Chevrolet K3500 | 1988 | Silverado |
| Chevrolet R10 Suburban | 1987-1988 | Silverado |
| Chevrolet R10 Suburban | 1987-1988 | Scottsdale |
| Chevrolet R10 Suburban | 1987 | Custom Deluxe |
| Chevrolet R20 | 1987 | Scottsdale |
| Chevrolet R20 | 1987 | Custom Deluxe |
| Chevrolet R20 | 1987 | Silverado |
| Chevrolet R20 Suburban | 1987-1988 | Silverado |
| Chevrolet R20 Suburban | 1987-1988 | Scottsdale |
| Chevrolet R20 Suburban | 1987 | Custom Deluxe |
| Chevrolet R30 | 1987-1988 | Custom Deluxe |
| Chevrolet R30 | 1987-1988 | Silverado |
| Chevrolet R30 | 1987-1988 | Scottsdale |
| Chevrolet R30 | 1988 | Cheyenne |
| Chevrolet Suburban | 1987-1988 | Base |
| Chevrolet V10 Suburban | 1987 | Custom Deluxe |
| Chevrolet V10 Suburban | 1987-1988 | Silverado |
| Chevrolet V10 Suburban | 1987-1988 | Scottsdale |
| Chevrolet V20 | 1987 | Scottsdale |
| Chevrolet V20 | 1987 | Silverado |
| Chevrolet V20 | 1987 | Custom Deluxe |
| Chevrolet V20 Suburban | 1987-1988 | Scottsdale |
| Chevrolet V20 Suburban | 1987-1988 | Silverado |
| Chevrolet V20 Suburban | 1987 | Custom Deluxe |
| Chevrolet V30 | 1987-1988 | Silverado |
| Chevrolet V30 | 1987-1988 | Custom Deluxe |
| Chevrolet V30 | 1987-1988 | Scottsdale |
| Chevrolet V30 | 1988 | Cheyenne |
| GMC C25 | 1975-1978 | Sierra Grande |
| GMC C25 | 1975-1978 | Base |
| GMC C25 | 1975-1978 | Sierra Classic |
| GMC C25 | 1975-1978 | High Sierra |
| GMC C25 Suburban | 1975-1978 | Base |
| GMC C25 Suburban | 1975-1978 | Sierra Classic |
| GMC C25 Suburban | 1975-1978 | High Sierra |
| GMC C25 Suburban | 1975-1978 | Sierra Grande |
| GMC C25/C2500 Pickup | 1973-1974 | Base |
| GMC C25/C2500 Suburban | 1973-1974 | Base |
| GMC C2500 | 1979-1986 | Sierra Classic |
| GMC C2500 | 1979-1982 | Sierra Grande |
| GMC C2500 | 1979-1986 | High Sierra |
| GMC C2500 | 1979-1986 | Base |
| GMC C2500 | 1988 | Sierra SLX |
| GMC C2500 | 1988 | Sierra |
| GMC C2500 | 1988 | Sierra SLE |
| GMC C2500 Suburban | 1979-1982 | Sierra Grande |
| GMC C2500 Suburban | 1979-1986 | High Sierra |
| GMC C2500 Suburban | 1979-1986 | Base |
| GMC C2500 Suburban | 1979-1986 | Sierra Classic |
| GMC C35 | 1975-1978 | High Sierra |
| GMC C35 | 1975-1978 | Sierra Grande |
| GMC C35 | 1975-1978 | Base |
| GMC C35 | 1975-1978 | Sierra Classic |
| GMC C35/C3500 Pickup | 1973-1974 | Base |
| GMC C3500 | 1979-1983, 1986 | Base |
| GMC C3500 | 1979-1982 | Sierra Grande |
| GMC C3500 | 1979-1983, 1986 | Sierra Classic |
| GMC C3500 | 1979-1983, 1986 | High Sierra |
| GMC C3500 | 1988 | Sierra |
| GMC C3500 | 1988 | Sierra SLE |
| GMC C3500 | 1988 | Sierra SLX |
| GMC G1500 | 1981-1983, 1986-1987 | Rally |
| GMC G1500 | 1981-1983, 1986-1987 | Vandura |
| GMC G1500 | 1981-1983, 1986-1987 | Rally STX |
| GMC G1500 | 1983 | Rally Custom |
| GMC G3500 | 1979-1983, 1986-1988 | Rally |
| GMC G3500 | 1979-1983, 1986-1988 | Vandura Special |
| GMC G3500 | 1979-1983, 1986-1988 | Rally Camper Special |
| GMC G3500 | 1979-1983, 1986-1988 | Rally STX |
| GMC G3500 | 1979-1983, 1986-1988 | Magnavan |
| GMC G3500 | 1979-1983, 1986-1988 | Vandura |
| GMC G3500 | 1981-1983, 1986-1988 | Rally Custom |
| GMC K25 | 1975-1978 | Sierra Grande |
| GMC K25 | 1975-1978 | Base |
| GMC K25 | 1975-1978 | High Sierra |
| GMC K25 | 1975-1978 | Sierra Classic |
| GMC K25 Suburban | 1975-1978 | Sierra Classic |
| GMC K25 Suburban | 1975-1978 | Base |
| GMC K25 Suburban | 1975-1978 | High Sierra |
| GMC K25 Suburban | 1975-1978 | Sierra Grande |
| GMC K25/K2500 Pickup | 1967-1974 | Base |
| GMC K25/K2500 Suburban | 1973-1974 | Base |
| GMC K2500 | 1979-1986 | Sierra Classic |
| GMC K2500 | 1979-1986 | High Sierra |
| GMC K2500 | 1979-1982 | Sierra Grande |
| GMC K2500 | 1979-1986 | Base |
| GMC K2500 | 1988 | Sierra |
| GMC K2500 | 1988 | Sierra SLX |
| GMC K2500 | 1988 | Sierra SLE |
| GMC K2500 Suburban | 1979-1982 | Sierra Grande |
| GMC K2500 Suburban | 1979-1986 | Sierra Classic |
| GMC K2500 Suburban | 1979-1986 | High Sierra |
| GMC K2500 Suburban | 1979-1986 | Base |
| GMC K35 | 1977-1978 | Sierra Classic |
| GMC K35 | 1977-1978 | Sierra Grande |
| GMC K35 | 1977-1978 | Base |
| GMC K35 | 1977-1978 | High Sierra |
| GMC K35/K3500 Pickup | 1973-1974 | Base |
| GMC K3500 | 1979-1983, 1986 | Sierra Classic |
| GMC K3500 | 1979-1982 | Sierra Grande |
| GMC K3500 | 1979-1983, 1986 | Base |
| GMC K3500 | 1979-1983, 1986 | High Sierra |
| GMC K3500 | 1988 | Sierra |
| GMC K3500 | 1988 | Sierra SLX |
| GMC K3500 | 1988 | Sierra SLE |
| GMC R2500 | 1987-1988 | High Sierra |
| GMC R2500 | 1987-1988 | Sierra Classic |
| GMC R2500 | 1987-1988 | Base |
| GMC R2500 Suburban | 1987-1988 | Sierra Classic |
| GMC R2500 Suburban | 1987-1988 | Base |
| GMC R2500 Suburban | 1987 | High Sierra |
| GMC R3500 | 1987 | Sierra Classic |
| GMC R3500 | 1987 | Base |
| GMC R3500 | 1987 | High Sierra |
| GMC V2500 | 1987 | Base |
| GMC V2500 | 1987 | High Sierra |
| GMC V2500 | 1987 | Sierra Classic |
| GMC V2500 Suburban | 1987-1988 | Sierra Classic |
| GMC V2500 Suburban | 1987-1988 | Base |
| GMC V2500 Suburban | 1987 | High Sierra |
| GMC V3500 | 1987 | High Sierra |
| GMC V3500 | 1987 | Base |
| GMC V3500 | 1987 | Sierra Classic |

USA Standard Gear is a company that supplies high-quality parts for the automotive industry. They are a one-stop-shop for all your drivetrain component needs and have one of the industry's most comprehensive parts list and inventory. Today, they are considered the leading supplier of these parts in the United States.
Drivetrain ExpertsThe company offers various parts ranging from axles, differential gears, lockers, limited slips, drivelines, and more. It is built by a team of craftsmen who has years of experience when it comes to assembling and modifying their own builds. This passion is what drives the company to create some of the best products in the market.
Quality In Every ProductAll their parts are manufactured in their facility equipped with the latest and most sophisticated tools available today. They also have two high-tech testing labs to ensure that every product comes out with the company's quality.
The USA Standard Gear engineering team is constantly on edge trying to find ways to develop and further improve their products. That is why they can produce innovative parts that adapt to the changing trend in the automotive world.
Purchase USA Standard Gear at Vivid RacingIf you are in the market for reliable and top-notched drivetrain components, then USA Standard Gear is the brand for you. With years of experience developing their products, they have provided their customers with parts they could trust, whether it's a replacement component or an upgrade.
To know more about USA Standard Gear, visit Vivid Racing and check out their list of offerings that fit your specific requirement.
Upon notification of a warranty claim, USA Standard shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product or replace it.
This warranty does not cover, and USA Standard shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the USA Standard product). In addition, this warranty does not cover, and USA Standard shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling USA Standard Gear® products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-USA Standard component.
This agreement offers you specific legal rights. You may also have other rights which vary from state to state.
USA STANDARD GEAR® WARRANTY BY PRODUCT| USA Standard Product | Length of Warranty (From date of sale) | NOTES |
|---|---|---|
| Spool | As long as original purchaser owns vehicle in which Spool is originally installed | It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear. |
| Rear Axle (1040/1050) | Five (5) Years | Covers parts for five years against manufacturing defects. |
| Front Axle (Series ZA W) | Five (5) Years | Five year warranty covering manufacturing defects and axle breakage. This warranty is not transferable to another party. “No Questions Asked†replacement for first warranty return, however, USA Standard Gear reserves the right to either replace axle or refund original purchase price after the first warranty claim. USA Standard Gear (through RANDYS Worldwide Automotive) makes final determination on warranty considerations. |
| Ring & Pinion Gear Set | One (1) Year | Warrantied against manufacturing defects for one (1) year. |
| Positraction Differential | One (1) Year | Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter. |
| Spartan Locker | One (1) Year | Warrantied against manufacturers defects for one (1) year. |
| Install Kits | One (1) Year | Includes ZBK, ZPK, and ZK. Covers parts for one year against manufacturing defects. |
| Spider Gear Kits (ZIK) | One (1) Year | One year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials. |
| Replacement Driveshafts (ZDS) | One (1) Year | Warrantied against manufacturing defects for one (1) year. |