gmc Rear Axles

1000 Rear Axles

Standard Rear Axle Option Only
1500 Pickup Rear Axles

4x4 12 bolt cover 4.11 ratio (opt GT5)
4x4 3.08 ratio (opt GU4)
4x4 10 bolt cover 4.10 ratio (opt GT5)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 2.56 ratio (opt GM8)
4x2 10 bolt cover 4.10 ratio (opt GT5)
4x4 12 bolt cover 2.56 ratio (opt GM8)
4x4 12 bolt cover 2.73 ratio (opt GU2)
4x4 12 bolt cover 3.08 ratio (opt GU4)
2500 Pickup Rear Axles

4x2 full-floating 4.56 ratio (opt HC4)
4x2 full-floating 4.10 ratio (opt GT5)
4x4 full-floating 4.56 ratio (opt HC4)
4x4 8 lug wheel 4.56 ratio (opt HC4)
4x2 model VIN C 4.56 ratio (opt HC4)
4x4 3.73 ratio (opt GT4)
4x4 (model VIN K) 4.10 ratio (opt GT5)
4x2 full-floating 3.73 ratio (opt GT4)
4x2 crew cab 3.42 axle ratio (opt GU6)
4x4 (model VIN K) 3.73 ratio (opt GT4)
3500 Pickup Rear Axles

4x2 SRW 4.10 ratio (opt GT5)
4x2 SRW 3.23 ratio (opt GU5)
4x2 SRW 3.73 ratio (opt GT4)
4x2 SRW 3.42 axle ratio (opt GU6)
4x2 SRW 4.56 ratio (opt HC4)
Acadia Rear Axles

(AWD)
Acadian Rear Axles

Standard Rear Axle Option Only
Canyon Rear Axles

4x4 3.73 ratio (opt GT4)
4x2 off road suspension (opt Z71)
4x4 4.10 ratio (opt GT5)
4x4 3.42 axle ratio (opt GU6)
4x2 sport suspension (opt ZQ8)
Denali Rear Axles

classic style (creased door skin)
new style (smooth door skin) 4x2
new style (smooth door skin) AWD
Envoy Rear Axles

4.2L 17" wheel 3.73 ratio
3.73 ratio (opt GT4)
5.3L 3.73 ratio
5.3L 3.42 ratio
5.3L 4.10 ratio
4.2L 18" wheel 4.10 ratio
5.3L 20" wheel 3.42 ratio
5.3L 20" wheel 3.73 ratio
5.3L 18" wheel 3.73 ratio
4.2L 17" wheel 3.42 ratio
Envoy XL Rear Axles

4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
Envoy XUV Rear Axles

3.73 ratio GT4
3.42 ratio GU6
4.10 ratio GT5
Forward Control Rear Axles

2500 Series
2500 Series 3.73 ratio (opt GT4)
3500 Series DRW removable carrier
3500 Series SRW 3.23 ratio (opt GU5)
2500 Series 4.56 ratio (opt HC4)
3500 Series DRW removable carrrier
2500 Series 3.21 ratio (opt HC8)
2500 Series 3.42 axle ratio (opt GU6)
3500 Series drum rear brakes DRW
3500 Series DRW removable carrier early
Jimmy Rear Axles

(4x4) 2.73 ratio (opt GU2)
3.73 ratio (opt GT4)
4x2 2.73 ratio (opt GU2)
4x4 3.08 ratio (opt GU4)
(4x4) 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x2 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
(4x4) 3.42 axle ratio (opt GU6)
Jimmy S15 Rear Axles

4x2 7-5/8" ring gear
4x4 AWD 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x4 ZR2 opt (3.73 ratio GT4)
4x4 3.08 ratio (opt GU4)
4x4 2 Dr 3.08 ratio (opt GU4)
4x4 4 Dr 3.42 axle ratio (opt GU6)
4x4 w/o ZR2 8-1/2" ring gear
4x4 ZR2
4x2 8-1/2" ring gear w/o ZR2
Safari Rear Axles

2.56 ratio (opt GM8)
3.23 ratio (opt GU5)
3.73 ratio (opt GT4)
3.08 ratio (opt GU4)
2.73 ratio (opt GU2)
4.11 ratio (opt HO4)
4.10 ratio (opt GT5)
3.42 axle ratio (opt GU6)
SAVANA 1500 VAN Rear Axles

active brake control (opt JL4)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
SAVANA 2500 VAN Rear Axles

8600 GVW (opt C6P) 3.73 ratio (opt GT4)
9-1/2" ring gear (3.42 ratio, opt GU6)
10-1/2" ring gear (3.54 ratio, opt GH0)
9-3/4" ring gear 4.10 ratio (opt GT5)
8500 GVW (opt C5F) 4.10 ratio (opt GT5)
9-3/4" ring gear 7300 GVW (opt C6A)
8600 GVW (opt C6P) 4.10 ratio (opt GT5)
7300 GVW (opt C6A)
10-1/2" ring gear
9-3/4" ring gear 3.73 ratio (opt GT4)
SAVANA 3500 VAN Rear Axles

exc. cutaway 4.10 ratio (opt GT5)
cutaway SRW 9-1/2" ring gear
Cutaway Van DRW 4.10 ratio (opt GT5)
Cutaway Van SRW 9-1/2" ring gear
exc. cutaway 3.73 ratio (opt GT4)
cutaway DRW 10-1/2" ring gear
cutaway DRW
Cutaway Van DRW 3.73 ratio (opt GT4)
cutaway SRW
cutaway DRW 10-3/4" ring gear
Sierra 1500 Rear Axles

Crew Cab 3.73 ratio (opt GT4)
exc. Crew Cab 4x2 3.73 ratio (opt GT4)
Crew Cab 4.10 ratio (opt GT5)
exc. Crew Cab 4x4 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
8.6" ring gear (10 bolt) brake opt JD9
4x2 3.42 axle ratio (opt GU6)
9.5" ring gear (14 bolt) brake opt JF3
Regular Cab 4x4 3.73 ratio (opt GT4)
Regular Cab 4x2 3.73 ratio (opt GT4)
Sierra 2500 Rear Axles

semi-floating axle 4.10 ratio (opt GT5)
full-floating axle 3.73 ratio (opt GT4)
10.5" ring gear 3.73 ratio (opt GT4)
10.50" ring gear 4.10 ratio (opt GT5)
11.5" ring gear (3.73 ratio, opt GT4)
11.50" ring gear (3.73 ratio, opt GT4)
full-floating axle 4.10 ratio (opt GT5)
10.5" ring gear 4.10 ratio (opt GT5)
10.50" ring gear 3.73 ratio (opt GT4)
semi-floating axle 3.73 ratio (opt GT4)
Sierra 3500 Rear Axles

SRW 3.73 ratio (opt GT4)
SRW 4.10 ratio (opt GT5)
SIERRA DENALI 1500 Rear Axles

8.6" ring gear (10 bolt)
9.5" ring gear (5.3L)
9.75" ring gear (6.2L)
9.5" ring gear (14 bolt)
SIERRA DENALI 2500 Rear Axles

Standard Rear Axle Option Only
SIERRA DENALI 3500 Rear Axles

Standard Rear Axle Option Only
Sonoma Rear Axles

4x2 2.73 ratio (opt GU2)
4x4 8-1/2" ring gear ZR2 (3.73 ratio)
4x2 8-1/2" ring gear
3.08 ratio (opt GU4)
4x2 w/o 3rd shock 2.73 ratio (opt GU2)
4x2 3rd shock 3.42 axle ratio (opt GU6)
4x4 2.73 ratio (opt GU2)
4x4 3.42 axle ratio (opt GU6)
4x2 w/o 3rd shock 3.08 ratio (opt GU4)
4x2 3.08 ratio (opt GU4)
Syclone Rear Axles

(3.42 ratio, opt GU6)
Terrain Rear Axles

(AWD)
Typhoon Rear Axles

(3.42 ratio, opt GU6)
Yukon Rear Axles

4x4 4.10 ratio (opt GT5)
4x2 3.42 axle ratio (opt GU6)
4 Dr 4x2 3.73 ratio (opt GT4)
3.73 ratio (opt GT4)
8-1/2" ring gear 3.08 ratio (opt GU4)
2 Dr 4x4 3.73 ratio (opt GT4)
Denali (5.7L, 3.73 ratio, opt GT4)
2 Dr 4x2 3.42 axle ratio (opt GU6)
4 Dr 4x4 3.42 axle ratio (opt GU6)
4x2 3.23 ratio (opt GU5)
Yukon XL 1500 Rear Axles

4x2 3.42 axle ratio (opt GU6)
4x4 4.10 ratio (opt GT5)
4x4 3.42 axle ratio (opt GU6)
4x4 3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
Yukon XL 2500 Rear Axles

4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
(3.73 ratio, opt GT4)