GMC Rear Axles

1000 Rear Axles

Standard Rear Axle Option Only

1500 Pickup Rear Axles

4x2 3.08 ratio (opt GU4)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x2 10 bolt cover 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 3.08 ratio (opt GU4)
4x2 10 bolt cover 2.73 ratio (opt GU2)
4x2 4.10 ratio (opt GT5)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x4 14 bolt cover 4.10 ratio (opt GT5)
4x4 12 bolt cover 2.73 ratio (opt GU2)

2500 Pickup Rear Axles

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

3500 Pickup Rear Axles

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

Acadia Rear Axles

(AWD)

Acadian Rear Axles

Standard Rear Axle Option Only

Canyon Rear Axles

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

Denali Rear Axles

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

Envoy Rear Axles

5.3L 3.73 ratio
3.42 axle ratio (opt GU6)
5.3L 4.10 ratio
4.2L 20" wheel 3.73 ratio
4.2L 18" wheel 3.73 ratio
4.2L 17" wheel 3.42 ratio
4.2L 18" wheel 4.10 ratio
5.3L 18" wheel 3.73 ratio
5.3L 20" wheel 3.42 ratio
5.3L 18" wheel 3.42 ratio

Envoy XL Rear Axles

3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
3.42 axle ratio (opt GU6)

Envoy XUV Rear Axles

3.42 ratio GU6
3.73 ratio GT4
4.10 ratio GT5

Forward Control Rear Axles

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

Jimmy Rear Axles

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

Jimmy S15 Rear Axles

4x4 4 Dr 3.08 ratio (opt GU4)
4x2 4.11 ratio (opt H04)
4x2 3.73 ratio (opt GT4)
4x2 8-1/2" ring gear ZR2
4x2 7-5/8" ring gear
4x2 8-1/2" ring gear (3.42 ratio, GU6)
4x4 w/o ZR2 8-1/2" ring gear
4x4 ZR2
4x2 7-5/8" ring gear (3.42 ratio, GU6)
4x2 2 Dr 3.42 axle ratio (opt GU6)

Safari Rear Axles

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

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

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

SAVANA 3500 VAN Rear Axles

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

Sierra 1500 Rear Axles

Regular Cab 4x2 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
exc. Crew Cab 4x2 3.08 ratio (opt GU4)
exc. Crew Cab 4x4 4.10 ratio (opt GT5)
Crew Cab 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 4.10 ratio (opt GT5)
4x2 3.73 ratio (opt GT4)
exc. Crew Cab 4x2 3.73 ratio (opt GT4)

Sierra 2500 Rear Axles

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

Sierra 3500 Rear Axles

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

SIERRA DENALI 1500 Rear Axles

9.5" ring gear (14 bolt)
8.6" ring gear (10 bolt)
9.75" ring gear (6.2L)
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)
3.42 axle ratio (opt GU6)
4x4 3.42 axle ratio (opt GU6)
4x4 8-1/2" ring gear ZR2 (3.73 ratio)
4x2 3rd shock 3.73 ratio (opt GT4)
4x4 2.73 ratio (opt GU2)
4x2 w/o 3rd shock 4.10 ratio (opt GT5)
4x2 w/o 3rd shock 3.08 ratio (opt GU4)
2.56 ratio (opt GM8)
4x4 3.73 ratio (opt GT4)

Syclone Rear Axles

(3.42 ratio, opt GU6)

Terrain Rear Axles

(AWD)

Typhoon Rear Axles

(3.42 ratio, opt GU6)

Yukon Rear Axles

4x2 3.23 ratio (opt GU5)
4 Dr 4x2 3.73 ratio (opt GT4)
3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x4 3.42 axle ratio (opt GU6)
4x4 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
exc. Denali 4x2 3.73 ratio (opt GT4)
9-1/2" ring gear (3.42 ratio, opt GU6)
4 Dr 4x2 3.08 ratio (opt GU4)

Yukon XL 1500 Rear Axles

3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 4.10 ratio (opt GT5)
4.10 ratio (opt GT5)
4x2 3.42 axle ratio (opt GU6)
4x4 3.42 axle ratio (opt GU6)

Yukon XL 2500 Rear Axles

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