Global Machinery Company 2500HD Automobile User Manual


 
The chart below shows the maximum allowable Gross Combination Weight Ratings
(GCWR) based on the available engines and axle ratios with automatic or manual
transmissions. The GCWR includes the total loaded weight of both the truck and the
trailer. Any available engine may be used for trailering if the GCWR shown is not exceeded.
**Rating is reduced by 454 kg (1000 lb.) when engine modified to operate on alternate fuels (CNG).
**Rating for 3500 Series with Dual Rear Wheels (DRW).
BALL HITCH TRAILERING SIERRA 2500HD AND 3500 PICKUPS
SIERRA 2500HD AND 3500 PICKUP GROSS COMBINATION WEIGHT RATINGS (GCWR)
The bigger the job, the more you’ll appreciate the capabilities of these Sierra heavy-duty pickups. The 2500HD and
3500 pickups deliver all the power you need with the available 330-hp Vortec 8.1L V8 and turbocharged 360-hp
Duramax 6.6L Diesel V8 engines. Coupled with the Allison 1000 Series 6-speed automatic transmission, these
powertrains offer the performance needed for even the most demanding trailering applications.
ENGINE/TRANSMISSION Vortec 6.0L V8 (LQ4) Vortec 8.1L V8 (L18) Duramax 6.6L V8 Diesel (LBZ)
Manual or Automatic Automatic 6-speed Automatic 6-speed
Horsepower 300 @ 4400 330 @ 4200 360 @ 3200
Torque (lb.-ft.) 360 @ 4000 450 @ 3200 650 @ 1600
MODEL Max. Trailer Axle Ratio Max. Trailer Axle Ratio Max. Trailer Axle Ratio
Weight, kg (lb.) Required Weight, kg (lb.) Required Weight, kg (lb.) Required
2500HD - 4173 kg (9200 lb.) GVWR
C25903 – Regular Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 2WD 4763 (10,500) 4.10 5443 (12,000) 4.10
C25753 – Extended Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Standard Box, 2WD 4672 (10,300) 4.10 5443 (12,000) 4.10
C25953 – Extended Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 2WD 4627 (10,200) 4.10 5443 (12,000) 4.10
C25743 – Crew Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Standard Box, 2WD 4581 (10,100) 4.10 5443 (12,000) 4.10
C25943 – Crew Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 2WD 4536 (10,000) 4.10 5443 (12,000) 4.10
K25903 – Regular Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 4x4 4672 (10,300) 4.10 5443 (12,000) 4.10
K25753 – Extended Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Standard Box, 4x4 4536 (10,000) 4.10 5443 (12,000) 4.10
K25953 – Extended Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 4x4 4491 (9900) 4.10 5443 (12,000) 4.10
K25743 – Crew Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Standard Box, 4x4 4445 (9800) 4.10 5443 (12,000) 4.10
K25943 – Crew Cab 5443 (12,000) 3.73 5443 (12,000) 3.73
Long Box, 4x4 4400 (9700) 4.10 5443 (12,000) 4.10
3500 - 4491 kg (9900 lb.) GVWR with Single Rear Wheels (SRW) / 4171 kg (11,400 lb.) GVWR with Dual Rear Wheels (DRW)
C35953 – Extended Cab 5443 (12,000) 3.73
Long Box, 2WD/SRW 4445 (9800) 4.10 5443 (12,000) 4.10
C35953 – Extended Cab 5443 (12,000) 3.73
Long Box, 2WD/DRW 4400 (9700) 4.10 5443 (12,000) 4.10
C35943 – Crew Cab 5443 (12,000) 3.73
Long Box, 2WD/SRW 4355 (9600) 4.10 5443 (12,000) 4.10
C35943 – Crew Cab 5443 (12,000) 3.73
Long Box, 2WD/DRW 4305 (9500) 4.10 5443 (12,000) 4.10
K35903 – Regular Cab 5443 (12,000) 3.73
Long Box, 4x4/SRW 4536 (10,000) 4.10 5443 (12,000) 4.10
K35903 – Regular Cab 5443 (12,000) 3.73
Long Box, 4x4/DRW 4445 (9800) 4.10 5443 (12,000) 4.10
K35953 – Extended Cab 5443 (12,000) 3.73
Long Box, 4x4/SRW 4355 (9600) 4.10 5443 (12,000) 4.10
K35953 – Extended Cab 5443 (12,000) 3.73
Long Box, 4x4/DRW 4264 (9400) 4.10 5443 (12,000) 4.10
K35943 – Crew Cab 5443 (12,000) 3.73
Long Box, 4x4/SRW 4264 (9400) 4.10 5443 (12,000) 4.10
K35943 – Crew Cab 5443 (12,000) 3.73
Long Box, 4x4/DRW 4173 (9200) 4.10 5443 (12,000) 4.10
SRW = Single Rear Wheels DRW = Dual Rear Wheels
SIERRA 2500HD & 3500 PICKUPS WITH BALL HITCH
GCWR kg (lb.) 7258 (16,000) 9072 (20,000) 9979 (22,000) 10,660 (23,500)
ENGINE AXLE RATIO REQUIRED WITH AUTOMATIC TRANSMISSION
Vortec 6.0L V8* 4.10
Vortec 8.1L V8 3.73 4.10
Duramax 6.6L V8 Diesel 3.73 3.73**
ENGINE AXLE RATIO REQUIRED WITH MANUAL TRANSMISSION
Vortec 6.0L V8* 4.10
10