GMC Rear Axles

1000 Rear Axles

Standard Rear Axle Option Only

1500 Pickup Rear Axles

4x2 3.73 ratio (opt GT4)
4x4 12 bolt cover 2.73 ratio (opt GU2)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
4x2 10 bolt cover 3.73 ratio (opt GT4)
4x2 2.56 ratio (opt GM8)
4x4 14 bolt cover 4.10 ratio (opt GT5)
4x2 10 bolt cover 2.73 ratio (opt GU2)
4x2 3.42 axle ratio (opt GU6)
4x2 14 bolt cover 3.73 ratio (opt GT4)

2500 Pickup Rear Axles

4x4 (model VIN K) 4.10 ratio (opt GT5)
4x2 crew cab 3.23 ratio (opt GU5)
4x2 crew cab 3.73 ratio (opt GT4)
4x2 full-floating 4.10 ratio (opt GT5)
4x4 6 lug wheel 4.10 ratio (opt GT5)
4x4 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 full-floating 4.56 ratio (opt HC4)
4x2 model VIN C 4.56 ratio (opt HC4)
4x2 crew cab 3.42 axle ratio (opt GU6)

3500 Pickup Rear Axles

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

Acadia Rear Axles

(AWD)

Acadian Rear Axles

Standard Rear Axle Option Only

Canyon Rear Axles

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

Denali Rear Axles

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

Envoy Rear Axles

4.10 ratio (opt GT5)
4.2L 17" wheel 3.42 ratio
4.2L 18" wheel 3.42 ratio
4.2L 20" wheel 3.42 ratio
5.3L 3.73 ratio
5.3L 18" wheel 3.73 ratio
3.42 axle ratio (opt GU6)
5.3L 20" wheel 3.42 ratio
4.2L 18" wheel 3.73 ratio
5.3L 20" wheel 3.73 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

3.73 ratio GT4
4.10 ratio GT5
3.42 ratio GU6

Forward Control Rear Axles

2500 Series 4.56 ratio (opt HC4)
3500 Series DRW removable carrier late
3500 Series DRW removable carrier early
3500 Series SRW 3.73 ratio (opt GT4)
2500 Series 3.73 ratio (opt GT4)
3500 Series SRW 4.56 ratio (opt HC4)
2500 Series 4.10 ratio (opt GT5)
2500 Series 3.42 axle ratio (opt GU6)
3500 Series DRW removable carrier
3500 Series SRW 3.23 ratio (opt GU5)

Jimmy Rear Axles

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

Jimmy S15 Rear Axles

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

Safari Rear Axles

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

SAVANA 1500 VAN Rear Axles

3.73 ratio (opt GT4)
active brake control (opt JL4)
3.42 axle ratio (opt GU6)

SAVANA 2500 VAN Rear Axles

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

SAVANA 3500 VAN Rear Axles

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

Sierra 1500 Rear Axles

Crew Cab 4.10 ratio (opt GT5)
exc. Crew Cab 4x2 3.08 ratio (opt GU4)
Regular Cab 4x4 4.10 ratio (opt GT5)
Crew Cab 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
Regular Cab 4x2 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x4 4.10 ratio (opt GT5)
9.5" ring gear (14 bolt) brake opt JF3
Regular Cab 4x2 3.08 ratio (opt GU4)

Sierra 2500 Rear Axles

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

Sierra 3500 Rear Axles

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

SIERRA DENALI 1500 Rear Axles

9.5" ring gear (5.3L)
8.6" ring gear (10 bolt)
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 w/o 3rd shock 3.08 ratio (opt GU4)
4x4 2.73 ratio (opt GU2)
2.56 ratio (opt GM8)
4x4 8-1/2" ring gear ZR2 (3.73 ratio)
4x2 w/o 3rd shock 4.10 ratio (opt GT5)
4x4 4.11 ratio (opt H04)
4x2 8-1/2" ring gear
3.73 ratio (opt GT4)
3.08 ratio (opt GU4)
4x2 3.42 axle ratio (opt GU6)

Syclone Rear Axles

(3.42 ratio, opt GU6)

Terrain Rear Axles

(AWD)

Typhoon Rear Axles

(3.42 ratio, opt GU6)

Yukon Rear Axles

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

Yukon XL 1500 Rear Axles

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