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Vivid Racing Gear 
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If you're serious about your ride, you know that the heart of your drivetrain is the ring and pinion gears. That’s where Motive Gear really shines. They’ve been in the game for years, crafting some of the toughest components out there. Whether you’re tearing up the trails or cruising on the highway, their lineup of performance ring and pinion gear sets has got you covered. With a wide range of ratios, including the popular 3.73, you can find exactly what you need for nearly any setup.
These gears aren’t just built for show; they’ve got the pedigree to back it up. You’ll find Motive Gear products on the winners' podium at racing events around the globe. That’s because they’ve spent years refining their designs, putting in the work on the track, and using state-of-the-art manufacturing methods to ensure top-notch quality. Each component undergoes rigorous testing by in-house engineers, so you know you’re getting something that’s truly reliable.
Now, let’s talk specs. The Motive Gear Differential Ring and Pinion is designed specifically for GM 8.875" trucks, featuring a robust 8620 steel construction that can handle the toughest conditions. With a ring gear diameter of 8.875 inches and a tooth count of 41, this setup is built to deliver the performance you want. The pinion shaft has a solid diameter of 1.438 inches, and with a spline count of 30, you can expect smooth engagement and reliability. Just make sure you’ve got a differential carrier rated for 3.73 or numerically higher ratios, and you’re good to go!
Features
- California Proposition 65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Differential Carrier Break: 3.73 and Higher
- Differential Ring and Pinion
- Ring Gear Diameter: 8.875 inches
- Ring Gear Bolt Quantity: 12
- Cover Bolt Quantity: 12
- Pinion Shaft Diameter: 1.438 inches
- Ring Gear Tooth Quantity: 41
- Pinion Spline Count: 30
- Ring and Pinion Gear Ratio: 3.73
- Ring Gear Rotation: Standard
- Pinion Gear Tooth Quantity: 11
- Differential Case Design Type: GM 8.875 Truck
- Ring Gear Material: 8620 Steel
- RP GM 8.875" 3.73 TRUCK MG
Notes:
For GM 8.875" (12 Bolt); 3.73 Ratio; Requires a 3.73 and Numerically Higher Ratio Carrier
Fits position: Rear
Products Fitment:
- Chevrolet Blazer 1969-1974
- Chevrolet C/K 10 1964-1982
- Chevrolet C/K 20 1969-1981
- Chevrolet G10 1975-1981
- Chevrolet G10 Van 1970-1974
- Chevrolet G20 1978-1981
- Chevrolet K5 Blazer 1975-1981
- Chevrolet P10 Series 1965-1967
- Chevrolet P10 Van 1967
- Chevrolet P20 1975-1981
- Chevrolet Suburban 1965-1982
- GMC C/K 15 1966-1978
- GMC C/K 1500 1966 & 1979-1982
- GMC C/K 25 1969-1978
- GMC C/K 2500 1979-1981
- GMC Jimmy 1970-1981
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Chevrolet Blazer | 1969-1974 | Base |
| Chevrolet C10 | 1975-1982 | Scottsdale |
| Chevrolet C10 | 1975-1981 | Cheyenne |
| Chevrolet C10 | 1975-1980 | Custom Deluxe |
| Chevrolet C10 | 1975-1982 | Silverado |
| Chevrolet C10 | 1975-1982 | Custom |
| Chevrolet C10 | 1978-1980 | Big Ten |
| Chevrolet C10 | 1981 | Deluxe |
| Chevrolet C10 Panel | 1964-1967 | Base |
| Chevrolet C10 Pickup | 1964-1974 | Base |
| Chevrolet C10 Suburban | 1967-1969, 1971-1974 | Base |
| Chevrolet C10 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet C10 Suburban | 1975-1980, 1982 | Scottsdale |
| Chevrolet C10 Suburban | 1975-1980, 1982 | Silverado |
| Chevrolet C10 Suburban | 1981 | Deluxe |
| Chevrolet C10 Suburban | 1981-1982 | Custom |
| Chevrolet C20 | 1975-1981 | Silverado |
| Chevrolet C20 | 1975-1981 | Cheyenne |
| Chevrolet C20 | 1975-1981 | Scottsdale |
| Chevrolet C20 | 1975-1980 | Custom Deluxe |
| Chevrolet C20 | 1981 | Deluxe |
| Chevrolet C20 | 1981 | Custom |
| Chevrolet C20 Pickup | 1969-1974 | Base |
| Chevrolet C20 Suburban | 1967-1969, 1971-1974 | Base |
| Chevrolet C20 Suburban | 1975-1980, 1982 | Scottsdale |
| Chevrolet C20 Suburban | 1975-1977, 1979-1980, 1982 | Silverado |
| Chevrolet C20 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet C20 Suburban | 1981 | Deluxe |
| Chevrolet C20 Suburban | 1981-1982 | Custom |
| Chevrolet G10 | 1975-1981 | Sportvan |
| Chevrolet G10 | 1975-1981 | Chevy Van |
| Chevrolet G10 | 1975-1981 | Beauville |
| Chevrolet G10 | 1981 | Bonaventure |
| Chevrolet G10 Van | 1970-1974 | Sportvan |
| Chevrolet G10 Van | 1970-1974 | Base |
| Chevrolet G20 | 1978-1981 | Nomad |
| Chevrolet G20 | 1978-1981 | Beauville |
| Chevrolet G20 | 1978-1981 | Sportvan |
| Chevrolet G20 | 1978-1981 | Chevy Van |
| Chevrolet K10 Pickup | 1964-1974 | Base |
| Chevrolet K10 Suburban | 1967-1969, 1971-1974 | Base |
| Chevrolet K10 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet K10 Suburban | 1975-1980, 1982 | Scottsdale |
| Chevrolet K10 Suburban | 1975-1977, 1979-1980, 1982 | Silverado |
| Chevrolet K10 Suburban | 1981 | Deluxe |
| Chevrolet K10 Suburban | 1981-1982 | Custom |
| Chevrolet K20 | 1975-1980 | Custom Deluxe |
| Chevrolet K20 | 1975-1981 | Cheyenne |
| Chevrolet K20 | 1975-1981 | Silverado |
| Chevrolet K20 | 1975-1981 | Scottsdale |
| Chevrolet K20 | 1981 | Custom |
| Chevrolet K20 | 1981 | Deluxe |
| Chevrolet K20 Pickup | 1969-1974 | Base |
| Chevrolet K20 Suburban | 1967-1969, 1971-1974 | Base |
| Chevrolet K20 Suburban | 1975-1980 | Custom Deluxe |
| Chevrolet K20 Suburban | 1975-1977, 1979-1980, 1982 | Silverado |
| Chevrolet K20 Suburban | 1975-1980, 1982 | Scottsdale |
| Chevrolet K20 Suburban | 1981 | Deluxe |
| Chevrolet K20 Suburban | 1981-1982 | Custom |
| Chevrolet K5 Blazer | 1975-1980 | Cheyenne |
| Chevrolet K5 Blazer | 1975, 1977-1980 | Custom Deluxe |
| Chevrolet K5 Blazer | 1976 | Base |
| Chevrolet K5 Blazer | 1978, 1980-1981 | Silverado |
| Chevrolet K5 Blazer | 1981 | Deluxe |
| Chevrolet K5 Blazer | 1981 | Custom |
| Chevrolet P10 Series | 1965-1967 | Base |
| Chevrolet P10 Van | 1967 | Base |
| Chevrolet P20 | 1975-1981 | Base |
| Chevrolet P20 | 1975-1981 | Step-Van |
| Chevrolet Suburban | 1965-1966 | Base |
| GMC C15 | 1975-1978 | Sierra Classic |
| GMC C15 | 1975-1978 | Base |
| GMC C15 | 1975-1978 | High Sierra |
| GMC C15 | 1975-1978 | Sierra Grande |
| GMC C15 | 1977-1978 | Heavy Half |
| GMC C15 | 1977 | Indy Hauler |
| GMC C15 | 1978 | Street Coupe |
| GMC C15 Suburban | 1975-1978 | Base |
| GMC C15 Suburban | 1975-1978 | High Sierra |
| GMC C15 Suburban | 1975-1978 | Sierra Classic |
| GMC C15 Suburban | 1975-1978 | Sierra Grande |
| GMC C15/C1500 Suburban | 1967 | Base |
| GMC C1500 | 1979-1982 | Sierra Grande |
| GMC C1500 | 1979-1982 | Base |
| GMC C1500 | 1979-1980 | Heavy Half |
| GMC C1500 | 1979-1982 | Street Coupe |
| GMC C1500 | 1979-1982 | Sierra Classic |
| GMC C1500 | 1979-1982 | High Sierra |
| GMC C1500 Suburban | 1979-1982 | Sierra Grande |
| GMC C1500 Suburban | 1979-1982 | Base |
| GMC C1500 Suburban | 1979-1982 | High Sierra |
| GMC C1500 Suburban | 1979-1982 | Sierra Classic |
| GMC C25 | 1975-1978 | Base |
| GMC C25 | 1975-1978 | Sierra Grande |
| GMC C25 | 1975-1978 | Sierra Classic |
| GMC C25 | 1975-1978 | High Sierra |
| GMC C25 Suburban | 1975-1978 | Sierra Classic |
| GMC C25 Suburban | 1975-1978 | Base |
| GMC C25 Suburban | 1975-1978 | High Sierra |
| GMC C25 Suburban | 1975-1978 | Sierra Grande |
| GMC C2500 | 1979-1981 | Base |
| GMC C2500 | 1979-1981 | High Sierra |
| GMC C2500 | 1979-1981 | Sierra Grande |
| GMC C2500 | 1979-1981 | Sierra Classic |
| GMC C2500 Suburban | 1979-1981 | Sierra Grande |
| GMC C2500 Suburban | 1979-1981 | High Sierra |
| GMC C2500 Suburban | 1979-1981 | Base |
| GMC C2500 Suburban | 1979-1981 | Sierra Classic |
| GMC Jimmy | 1970-1981 | Base |
| GMC Jimmy | 1975-1981 | Sierra Classic |
| GMC Jimmy | 1975-1981 | Sierra Grande |
| GMC Jimmy | 1975-1981 | High Sierra |
| GMC Jimmy | 1978-1981 | Street Coupe |
| GMC K15 | 1975-1978 | High Sierra |
| GMC K15 | 1975-1978 | Base |
| GMC K15 | 1975-1978 | Sierra Classic |
| GMC K15 | 1975-1978 | Sierra Grande |
| GMC K15 | 1977 | Indy Hauler |
| GMC K15 Suburban | 1975-1978 | Base |
| GMC K15 Suburban | 1975-1978 | High Sierra |
| GMC K15 Suburban | 1975-1978 | Sierra Grande |
| GMC K15 Suburban | 1975-1978 | Sierra Classic |
| GMC K15/K1500 Suburban | 1967 | Base |
| GMC K1500 | 1979-1982 | Sierra Classic |
| GMC K1500 | 1979-1982 | Base |
| GMC K1500 | 1979-1982 | High Sierra |
| GMC K1500 | 1979-1982 | Sierra Grande |
| GMC K1500 Suburban | 1979-1982 | High Sierra |
| GMC K1500 Suburban | 1979-1982 | Sierra Grande |
| GMC K1500 Suburban | 1979-1982 | Sierra Classic |
| GMC K1500 Suburban | 1979-1982 | Base |
| GMC K25 | 1975-1978 | Base |
| GMC K25 | 1975-1978 | Sierra Grande |
| GMC K25 | 1975-1978 | Sierra Classic |
| GMC K25 | 1975-1978 | High Sierra |
| GMC K25 Suburban | 1975-1978 | High Sierra |
| GMC K25 Suburban | 1975-1978 | Sierra Grande |
| GMC K25 Suburban | 1975-1978 | Sierra Classic |
| GMC K25 Suburban | 1975-1978 | Base |
| GMC K25/K2500 Suburban | 1967 | Base |
| GMC K2500 | 1979-1981 | Sierra Classic |
| GMC K2500 | 1979-1981 | Sierra Grande |
| GMC K2500 | 1979-1981 | High Sierra |
| GMC K2500 | 1979-1981 | Base |
| GMC K2500 Suburban | 1979-1981 | Base |
| GMC K2500 Suburban | 1979-1981 | Sierra Classic |
| GMC K2500 Suburban | 1979-1981 | Sierra Grande |
| GMC K2500 Suburban | 1979-1981 | High Sierra |
Motive Gear is a Midwest Truck and Auto Parts division specializing in producing high-quality drivetrain components for the automotive industry. They offer a wide range of products from differential bearing kits, ring and pinion gear sets, transmission kits and components, transfer case parts, and replacement axle shafts. Today, Motive Gear is one of the most sought-after brands when it comes to drivetrain parts.
Quality and Affordable PartsMotive Gear provides high-quality drivetrain parts at an affordable price. All of their products are designed using the latest manufacturing equipment and goes through an extensive quality control test. It ensures that their products achieve a perfect fit, provides optimum performance and longevity.
Choice Of ChampionsTheir products are also used by many racers from various racing disciplines such as IHRA, NHRA, NMRA, SODA, NMCA, BITD, and NASCAR. It is a testament to the quality and performance their product provides. Their racing participation also allows the company to gather vital data that lets them improve their products further.
Purchase Motive Gear Products At Vivid RacingIf you are planning to upgrade your drivetrain and are searching for a company that you can trust, then Motive Gear is the brand for you. Over the years, they have consistently given customers parts that they can rely on and have proven that quality parts do not always have to be expensive. To know more about Motive Gear, visit Vivid Racing and check out their list of products that fit your specific requirement.
At Motive Gear, from inception to inspection, our parts surpass rigorous quality control tests. When you open your Motive Gear box, you can see the quality of our hard work. Our highly qualified quality control technicians are up-to-date on the latest industry innovations to ensure that the quality of our product is unsurpassed. Our parts are TOUGH. We back our Motive Gear Performance ring & pinion gear sets with a 2 year / 100,000 mile no-nonsense warranty and all other products with a 1 year / 50,000 mile warranty
Installation Instructions
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