GMC Rear Axles

1000 Rear Axles

Standard Rear Axle Option Only
1500 Pickup Rear Axles

4x2 14 bolt cover (3.73 ratio, opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 12 bolt cover 2.56 ratio (opt GM8)
4x2 10 bolt cover 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x2 2.56 ratio (opt GM8)
4x2 3.73 ratio (opt GT4)
4x4 12 bolt cover 2.73 ratio (opt GU2)
4x2 10 bolt cover 4.10 ratio (opt GT5)
4x4 10 bolt cover 2.56 ratio (opt GM8)
2500 Pickup Rear Axles

4x4 8 lug wheel 4.56 ratio (opt HC4)
4x4 full-floating 4.56 ratio (opt HC4)
4x2 full-floating 4.56 ratio (opt HC4)
4x2 model VIN R 4.10 ratio (opt GT5)
4x2 model VIN C 3.73 ratio (opt GT4)
4x4 3.23 ratio (opt GU5)
4x4 full-floating 4.10 ratio (opt GT5)
4x2 crew cab 3.21 ratio (opt HC8)
4x4 full-floating 3.73 ratio (opt GT4)
4x4 6 lug wheel 3.73 ratio (opt GT4)
3500 Pickup Rear Axles

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

(AWD)
Acadian Rear Axles

Standard Rear Axle Option Only
Canyon Rear Axles

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

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

5.3L 18" wheel 3.73 ratio
4.2L 17" wheel 3.42 ratio
5.3L 20" wheel 3.73 ratio
5.3L 4.10 ratio
4.2L 20" wheel 3.42 ratio
5.3L 3.73 ratio
3.73 ratio (opt GT4)
4.2L 17" wheel 4.10 ratio
4.10 ratio (opt GT5)
5.3L 20" wheel 3.42 ratio
Envoy XL Rear Axles

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

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

2500 Series 3.42 axle ratio (opt GU6)
3500 Series SRW 3.21 ratio (opt HC8)
3500 Series SRW 3.73 ratio (opt GT4)
3500 Series DRW removable carrrier
3500 Series DRW removable carrier early
3500 Series DRW removable carrier
2500 Series 3.21 ratio (opt HC8)
2500 Series 4.10 ratio (opt GT5)
2500 Series
3500 Series SRW 4.56 ratio (opt HC4)
Jimmy Rear Axles

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

4x2 7-5/8" ring gear
4x4 AWD 3.42 axle ratio (opt GU6)
4x2 8-1/2" ring gear w/o ZR2
4x2 8-1/2" ring gear (3.42 ratio, GU6)
4x2 3.08 ratio (opt GU4)
4x4 ZR2
4x2 2 Dr 3.42 axle ratio (opt GU6)
4x2 4 Dr 3.42 axle ratio (opt GU6)
4x2 7-5/8" ring gear (3.42 ratio, GU6)
4x4 4.11 ratio (opt H04)
Safari Rear Axles

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

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

8600 GVW (opt C6P) 3.73 ratio (opt GT4)
8500 GVW (opt C5F) 4.10 ratio (opt GT5)
9-3/4" ring gear 3.73 ratio (opt GT4)
8500 GVW (opt C5F) 3.73 ratio (opt GT4)
9-1/2" ring gear (3.42 ratio, opt GU6)
8600 GVW (opt C6P) 4.10 ratio (opt GT5)
10-1/2" ring gear
9-3/4" ring gear 7300 GVW (opt C6A)
10-1/2" ring gear (3.54 ratio, opt GH0)
full floating axle (13 x 3.5" brakes)
SAVANA 3500 VAN Rear Axles

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

9.5" ring gear (14 bolt) brake opt JF3
exc. Crew Cab 4x2 3.08 ratio (opt GU4)
Regular Cab 4x2 3.08 ratio (opt GU4)
Regular Cab 4x4 3.73 ratio (opt GT4)
exc. Crew Cab 4x2 3.73 ratio (opt GT4)
4x4 4.10 ratio (opt GT5)
Crew Cab 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
8.6" ring gear (10 bolt) brake opt JD9
Crew Cab 4.10 ratio (opt GT5)
Sierra 2500 Rear Axles

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

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

8.6" ring gear (10 bolt)
9.75" ring gear (6.2L)
9.5" ring gear (14 bolt)
9.5" ring gear (5.3L)
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)
4x2 3rd shock 3.08 ratio (opt GU4)
4x2 3rd shock 3.42 axle ratio (opt GU6)
3.42 axle ratio (opt GU6)
3.08 ratio (opt GU4)
4x2 3rd shock 3.73 ratio (opt GT4)
4x2 w/o 3rd shock 2.73 ratio (opt GU2)
4x2 4.11 ratio (opt H04)
4x4 8-1/2" ring gear ZR2 (3.73 ratio)
2.73 ratio (opt GU2)
Syclone Rear Axles

(3.42 ratio, opt GU6)
Terrain Rear Axles

(AWD)
Typhoon Rear Axles

(3.42 ratio, opt GU6)
Yukon Rear Axles

4 Dr 4x4 3.73 ratio (opt GT4)
exc. Denali 4x2 3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
4x2 3.23 ratio (opt GU5)
2 Dr 4x2 3.08 ratio (opt GU4)
2 Dr 4x2 3.42 axle ratio (opt GU6)
4 Dr 4x2 3.73 ratio (opt GT4)
2 Dr 4x4 3.73 ratio (opt GT4)
4x4 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
Yukon XL 1500 Rear Axles

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

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