
GM Ring & Pinion Gear Set Ratio: 3.42
- GM Ring & Pinion Gear Set
- Ratio: 3.42
- Teeth: 41-12
- Front: Use Installation Kit #836-83-1020-1
- Rear: Use Installation Kit #836-83-1021-1
- 1973-87 Truck: Use Installation Kit #836-83-1021-M or #836-83-1021-TE
- Does not work with pinion-mounted ABS sensor in 1990-96 Impala/Impala SS/Caprice
- When replacing a stock 2.56 or lower ratio, the carrier must be replaced with a 2.73 or higher carrier
Items You Need
![Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]](https://www.jegs.com/images/mini_200/500/555/555-28035.jpg)
JEGS
Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]
Part Number : 555-28035
![75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]](https://www.jegs.com/images/mini_200/500/555/555-28050.jpg)
JEGS
75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]
Part Number : 555-28050

JEGS
Adjustable Magnetic Base 110 lb Magnet with On/Off lever
Part Number : 555-81615
![Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]](https://www.jegs.com/images/mini_200/500/555/555-81655.jpg)
JEGS
Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]
Part Number : 555-81655

JEGS
Adjustable Magnetic Base 110 lb Magnet with On/Off lever
Part Number : 555-81615
![Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]](https://www.jegs.com/images/mini_200/500/555/555-81655.jpg)
JEGS
Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]
Part Number : 555-81655

DORMAN PRODUCTS
Pinion Yoke 1982-2008 GM 8.5" or 8.625" Ring Gear
Part Number : 326-697-500

RICHMOND GEAR
Marking Compound Kit 1/2 ounce
Part Number : 836-35-0007-1
![Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]](https://www.jegs.com/images/mini_200/500/555/555-28035.jpg)
JEGS
Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]
Part Number : 555-28035

JEGS
Pressure Bead Gasket Maker Silicone 8 oz
Part Number : 555-28045
![75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]](https://www.jegs.com/images/mini_200/500/555/555-28050.jpg)
JEGS
75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]
Part Number : 555-28050
![Limited Slip Additive [4oz Bottle]](https://www.jegs.com/images/mini_200/500/555/555-60120.jpg)
JEGS
Limited Slip Additive [4oz Bottle]
Part Number : 555-60120

JEGS
Adjustable Magnetic Base 110 lb Magnet with On/Off lever
Part Number : 555-81615
![Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]](https://www.jegs.com/images/mini_200/500/555/555-81655.jpg)
JEGS
Differential Pinion Depth Tool Setup Kit [Hard Anodized Aluminum Components]
Part Number : 555-81655

DORMAN PRODUCTS
Pinion Yoke 1982-2008 GM 8.5" or 8.625" Ring Gear
Part Number : 326-697-500

RICHMOND GEAR
Marking Compound Kit 1/2 ounce
Part Number : 836-35-0007-1
![Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]](https://www.jegs.com/images/mini_200/500/555/555-28035.jpg)
JEGS
Black RTV, Temperature Resistant up to 625 Degrees F [3.8 oz. Tube]
Part Number : 555-28035

JEGS
Pressure Bead Gasket Maker Silicone 8 oz
Part Number : 555-28045
![75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]](https://www.jegs.com/images/mini_200/500/555/555-28050.jpg)
JEGS
75W-90 Multi-Purpose Synthetic Gear Oil [1 Quart]
Part Number : 555-28050
![Limited Slip Additive [4oz Bottle]](https://www.jegs.com/images/mini_200/500/555/555-60120.jpg)
JEGS
Limited Slip Additive [4oz Bottle]
Part Number : 555-60120
ITEM YOU MAY ALSO CONSIDER

JEGS
GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style)
Part Number : 555-60030
![GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1006.jpg)
LIBERTY AUTOMOTIVE
GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]
Part Number : 748-GM85B1006
![GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1005.jpg)
LIBERTY AUTOMOTIVE
GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1005
![GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1008.jpg)
LIBERTY AUTOMOTIVE
GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1008
![GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1007.jpg)
LIBERTY AUTOMOTIVE
GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]
Part Number : 748-GM85B1007

RICHMOND GEAR
Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.42
Part Number : 836-GM85342
![GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1007.jpg)
LIBERTY AUTOMOTIVE
GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]
Part Number : 748-GM85B1007

DANA SPICER
GM 10-Bolt 8.5" Ring & Pinion 3.42 Ratio
Part Number : 094-2020642

RICHMOND GEAR
Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.42
Part Number : 836-GM85342

YUKON GEAR
Ring & Pinion Gear Set GM 8.5" /8.6"
Part Number : 807-YGGM8.5342

JEGS
GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style)
Part Number : 555-60030
![GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1006.jpg)
LIBERTY AUTOMOTIVE
GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]
Part Number : 748-GM85B1006
![GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1005.jpg)
LIBERTY AUTOMOTIVE
GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1005
![GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1008.jpg)
LIBERTY AUTOMOTIVE
GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1008
![GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1007.jpg)
LIBERTY AUTOMOTIVE
GM85B1007 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Posi Differential [3.42 Ratio]
Part Number : 748-GM85B1007

DANA SPICER
GM 10-Bolt 8.5" Ring & Pinion 3.42 Ratio
Part Number : 094-2020642

RICHMOND GEAR
Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.42
Part Number : 836-GM85342

YUKON GEAR
Ring & Pinion Gear Set GM 8.5" /8.6"
Part Number : 807-YGGM8.5342

JEGS
GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style)
Part Number : 555-60030
![GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1006.jpg)
LIBERTY AUTOMOTIVE
GM85B1006 Ring & Pinion w/Installation Kit Bundle for 1988-2002 GM Trucks, SUVs 8.5 Differentials [3.42 Ratio]
Part Number : 748-GM85B1006
![GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1005.jpg)
LIBERTY AUTOMOTIVE
GM85B1005 Ring & Pinion w/Installation Kit Bundle for 2009-2017 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1005
![GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]](https://www.jegs.com/images/mini_200/700/748/748-gm85b1008.jpg)
LIBERTY AUTOMOTIVE
GM85B1008 Ring & Pinion w/Installation Kit Bundle for 1999-2008 GM Trucks, SUVs 8.6 Differentials [3.42 Ratio]
Part Number : 748-GM85B1008
⚠️ Warning
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
