Standard Rear Axle Option Only
4x2 14 bolt cover 3.73 ratio (opt GT4)
4x2 10 bolt cover 3.08 ratio (opt GU4)
4x2 2.73 ratio (opt GU2)
4x4 10 bolt cover 2.56 ratio (opt GM8)
4x4 12 bolt cover 4.11 ratio (opt GT5)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x4 3.08 ratio (opt GU4)
4x2 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x2 4.10 ratio (opt GT5)
4x2 crew cab 4.10 ratio (opt GT5)
4x4 8 lug wheel 4.56 ratio (opt HC4)
4x4 6 lug wheel 3.73 ratio (opt GT4)
4x4 (model VIN K) 4.10 ratio (opt GT5)
4x4 8 lug wheel 3.73 ratio (opt GT4)
4x4 (model VIN K) 3.73 ratio (opt GT4)
4x2 crew cab 3.73 ratio (opt GT4)
4x4 full-floating 3.73 ratio (opt GT4)
4x2 crew cab 3.23 ratio (opt GU5)
4x2 crew cab 3.21 ratio (opt HC8)
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)
4x2 SRW 3.73 ratio (opt GT4)
(AWD)
Standard Rear Axle Option Only
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 off road suspension (opt Z71)
4x2 sport suspension (opt ZQ8)
4x4 4.10 ratio (opt GT5)
classic style (creased door skin)
new style (smooth door skin) 4x2
new style (smooth door skin) AWD
5.3L 20" wheel 3.73 ratio
5.3L 3.73 ratio
5.3L 3.42 ratio
4.2L 18" wheel 4.10 ratio
4.2L 17" wheel 3.73 ratio
4.2L 17" wheel 4.10 ratio
4.2L 20" wheel 3.42 ratio
4.2L 20" wheel 3.73 ratio
4.2L 17" wheel 3.42 ratio
5.3L 18" wheel 3.42 ratio
4.10 ratio (opt GT5)
3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
3.73 ratio GT4
4.10 ratio GT5
3.42 ratio GU6
3500 Series DRW removable carrier early
2500 Series 3.21 ratio (opt HC8)
2500 Series
3500 Series DRW removable carrier
2500 Series 3.73 ratio (opt GT4)
3500 Series SRW 4.10 ratio (opt GT5)
3500 Series DRW removable carrrier
3500 Series drum rear brakes DRW
3500 Series SRW 4.56 ratio (opt HC4)
2500 Series 4.56 ratio (opt HC4)
3.73 ratio (opt GT4)
(4x4) 2.73 ratio (opt GU2)
4x4 2.73 ratio (opt GU2)
4x4 3.73 ratio (opt GT4)
(4x4) 3.42 axle ratio (opt GU6)
4x2 3.08 ratio (opt GU4)
4x2 2.73 ratio (opt GU2)
(4x4) 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
(4x4) 3.08 ratio (opt GU4)
4x2 4 Dr 3.08 ratio (opt GU4)
4x4 3.73 ratio (opt GT4)
4x4 AWD 3.42 axle ratio (opt GU6)
4x2 4 Dr 3.42 axle ratio (opt GU6)
4x2 3.73 ratio (opt GT4)
4x4 2 Dr 3.08 ratio (opt GU4)
4x4 ZR2 opt (3.73 ratio GT4)
4x2 8-1/2" ring gear (3.42 ratio, GU6)
4x4 4 Dr 3.08 ratio (opt GU4)
4x2 2 Dr 3.08 ratio (opt GU4)
4.10 ratio (opt GT5)
3.23 ratio (opt GU5)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
4.11 ratio (opt HO4)
2.56 ratio (opt GM8)
2.73 ratio (opt GU2)
3.08 ratio (opt GU4)
3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
active brake control (opt JL4)
9-1/2" ring gear (3.42 ratio, opt GU6)
9-3/4" ring gear 3.73 ratio (opt GT4)
9-3/4" ring gear 7300 GVW (opt C6A)
9-3/4" ring gear 4.10 ratio (opt GT5)
8600 GVW (opt C6P) 4.10 ratio (opt GT5)
10-1/2" ring gear (3.54 ratio, opt GH0)
8500 GVW (opt C5F) 3.73 ratio (opt GT4)
full floating axle (13 x 3.5" brakes)
8600 GVW (opt C6P) 3.73 ratio (opt GT4)
10-1/2" ring gear
exc. cutaway 3.73 ratio (opt GT4)
cutaway SRW 9-1/2" ring gear
Cutaway Van SRW 9-1/2" ring gear
cutaway SRW
cutaway DRW
cutaway DRW 4.10 ratio (opt GT5)
Cutaway Van DRW 4.10 ratio (opt GT5)
cutaway SRW 9-3/4" ring gear
exc. cutaway
Cutaway Van DRW 3.73 ratio (opt GT4)
Crew Cab 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 4.10 ratio (opt GT5)
Crew Cab 3.73 ratio (opt GT4)
exc. Crew Cab 4x4 4.10 ratio (opt GT5)
Regular Cab 4x4 4.10 ratio (opt GT5)
exc. Crew Cab 4x4 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
9.5" ring gear (14 bolt) brake opt JF3
full-floating axle 3.73 ratio (opt GT4)
10.5" 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)
10.50" ring gear 4.10 ratio (opt GT5)
full-floating axle 4.10 ratio (opt GT5)
semi-floating axle 4.10 ratio (opt GT5)
10.5" ring gear 3.73 ratio (opt GT4)
10.50" ring gear 3.73 ratio (opt GT4)
semi-floating axle 3.73 ratio (opt GT4)
SRW 4.10 ratio (opt GT5)
SRW 3.73 ratio (opt GT4)
8.6" ring gear (10 bolt)
9.5" ring gear (14 bolt)
9.75" ring gear (6.2L)
9.5" ring gear (5.3L)
Standard Rear Axle Option Only
Standard Rear Axle Option Only
3.73 ratio (opt GT4)
3.08 ratio (opt GU4)
4x4 8-1/2" ring gear ZR2 (3.73 ratio)
4x4 3.08 ratio (opt GU4)
4x2 3rd shock 3.42 axle ratio (opt GU6)
4x2 w/o 3rd shock 4.10 ratio (opt GT5)
4x2 8-1/2" ring gear
2.73 ratio (opt GU2)
3.42 axle ratio (opt GU6)
4x2 2.73 ratio (opt GU2)
(3.42 ratio, opt GU6)
(AWD)
(3.42 ratio, opt GU6)
4 Dr 4x2 3.73 ratio (opt GT4)
2 Dr 4x2 3.42 axle ratio (opt GU6)
3.42 axle ratio (opt GU6)
Denali (5.7L, 3.73 ratio, opt GT4)
4 Dr 4x2 3.08 ratio (opt GU4)
4x2 3.42 axle ratio (opt GU6)
2 Dr 4x2 3.08 ratio (opt GU4)
exc. Denali 4x2 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x4 4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x2 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x4 4.10 ratio (opt GT5)
4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
(3.73 ratio, opt GT4)