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BLAZER S10/JIMMY S15
- 4x2
  - 2 door
    - 3.08 ratio (opt GU4)
    - 3.42 axle ratio (opt GU6)
  - 4 door
    - 3.08 ratio (opt GU4)
    - 3.42 axle ratio (opt GU6)
- 4x4
BLAZER/JIMMY (full size)
- (4x4)
  - 2.73 ratio (opt GU2)
  - 3.08 ratio (opt GU4)
  - 3.42 axle ratio (opt GU6)
  - 3.73 ratio (opt GT4)

Rear Axle Assembly for 1991 GMC Jimmy

Fits: BLAZER/JIMMY full size 4x4 3.42 axle ratio opt GU6 (change)

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