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Basic Information:
- The front diff is used from 1983-1997 in AWD and 4wd platforms. AWD diffs have a different full time passenger side axle/tube which is easily swapped if you can only find 4x4 replacements.
- ZR2 option S10's in 95 time frame have a cast iron case.
- Pinion Nut Size 1 1/4"
The axles on the Bravada and Typhoon are designed for full-time four wheel drive and therefore are not equipped with a disengagement feature. With this one exception, the Bravada, Typhoon and standard 4wd front axle assemblies are very similar. The drive axles employ completely flexible assemblies which consist of inner and outer constant velocity (CV) joints connected by an axle shaft. The inner CV joint is a "tri-pot'' design, which is completely flexible and can move in and out. The outer CV joint is a "Rzeppa'' design which is also flexible but cannot move in or out.
RPO Code: GU6 is the code for 3.42 ratio (GT4 is 3.73, GU4 is 3.08)
PART NUMBERS (Not all listed):
- The front diff is used from 1983-1997 in AWD and 4wd platforms. AWD diffs have a different full time passenger side axle/tube which is easily swapped if you can only find 4x4 replacements.
- ZR2 option S10's in 95 time frame have a cast iron case.
- Pinion Nut Size 1 1/4"
The axles on the Bravada and Typhoon are designed for full-time four wheel drive and therefore are not equipped with a disengagement feature. With this one exception, the Bravada, Typhoon and standard 4wd front axle assemblies are very similar. The drive axles employ completely flexible assemblies which consist of inner and outer constant velocity (CV) joints connected by an axle shaft. The inner CV joint is a "tri-pot'' design, which is completely flexible and can move in and out. The outer CV joint is a "Rzeppa'' design which is also flexible but cannot move in or out.
RPO Code: GU6 is the code for 3.42 ratio (GT4 is 3.73, GU4 is 3.08)
PART NUMBERS (Not all listed):
- Stub Axle Bearing - BCAHK4012
- Right Inner Axle Shaft Pilot Bearing - BCAB2516
- Right Intermediate Bearing - BCAB5020
- Pinion Bearing
- Crush Sleeve
- Pinion Nut
- Stub Axle
- Shims
- Ring/Pinion 3.42
- Ring/Pinion 3.08
- Lock Right Unit 1935
- Seals
- Axle seals (qty 2) - 14039577
- Pinion seal - 14039587
- Drain Plug
- Recomended Gear Oil
- Upper Housing Bushing GM - 15656163