[Bob Mulry]

Hi,

These specs apply to a 2008 model year because that is the latest year that is posted and they should be similar to most current GM models.....

Chevy Silverado/GMC Sierra, Light Duty,
Crew Cab Shortbed
Vehicle Engine Tow Limit (LB)
1500 CC Shortbed 2WD 4.8L V-8 4,600 (d)
1500 CC Shortbed 2WD 4.8L V-8 6,600 (g)
1500 CC Shortbed 2WD 5.3L V-8 6,600 (e)
1500 CC Shortbed 2WD 5.3L V-8 7,600 (g)
1500 CC Shortbed 2WD 6.0L V-8 8,700 (g)
1500 CC Shortbed 2WD 6.0L V-8 10,200 (g)**
1500 CC Shortbed 2WD 6.2L V-8 8,600 (e)*
1500 CC Shortbed 4WD 4.8L V-8 5,400 (e)
1500 CC Shortbed 4WD 4.8L V-8 7,400 (i)
1500 CC Shortbed 4WD 5.3L V-8 7,500 (g)
1500 CC Shortbed 4WD 5.3L V-8 8,500 (i)
1500 CC Shortbed 4WD 6.0L V-8 8,400 (g)
1500 CC Shortbed 4WD 6.0L V-8 10,500 (i)**
1500 CC Shortbed 4WD 6.2L V-8 8,400 (e)*
Manufacturer’s note: Shortbed models are not designed or intended to tow fifth-wheel
trailers. *Denali model. **NHT Enhanced Trailering Performance Package required.




Key To Charts
a = Automatic Transmission
a4 = Automatic Transmission, four speeds
a5 = Automatic Transmission, five speeds
a6 = Automatic Transmission, six speeds
m= Manual Transmission
I-4 2,100 (g)/3,000 (g)
b = 3.08:1 axle ratio
c = 3.21:1 axle ratio
d = 3.23:1 axle ratio
e = 3.42:1 axle ratio
f = 3.55:1 axle ratio
g = 3.73:1 axle ratio
h = 3.92:1 axle ratio
i = 4.10:1 axle ratio
j = 4.30:1 axle ratio
k = 4.44:1 axle ratio
l = 4.56:1 axle ratio
n = 4.88:1 axle ratio
o = 5.38:1 axle ratio
AWD = All-Wheel Drive
CC = Crew Cab
KC = King Cab
QC = Quad Cab
SWB= Short Wheelbase
LWB = Long Wheelbase
DRW= Dual Rear Wheels
CV = Cargo Van
PV = Passenger Van
RCC = Regular Chassis Cab
SCC = Super Chassis Cab
CCC = Crew Chassis Cab
TD = Turbodiesel
TC = Turbocharged
SC = Supercharged
NA = Not applicable, or not available
t = Towing package required.
x = Trailer brakes required.

This info is available on-line at the Trailer Life web site...

Have fun,
Bob