The 8.1L tows about 12000-14000 pounds
6603
http://en.wikipedia.org/wiki/Chevrolet_Silverado The 3500 is a Heavy Duty truck by default, towing capacity should be over 16k pounds.
1000lbs
mmcda
8000l bs
mmcda
9000 pounds
ABOUT 5,000 LB THAT IS WHAT MY 1999 WILL DO
6Qts. with a new filter.
6000 lbs with 4.8 V-8
about 8200/8400 lbs
towing capacity is 2000lbs