Per the 1998 Chevy C1500 manual... The 5.7L can do 5000 - 7000 depending on the axle ratio.
3.08 - 5000lbs
3.42 - 6000lbs
3.73 - 7000lbs
It also requires an oil cooler for more than 2000lbs and heavy duty shocks for over 5000lbs. The 4.3L auto can do 4000 (3.08) or 5000 (3.42).
The 4.3L manual can do 2000 (3.08), 2500 (3.42), 3000 (3.73). The 5.0 auto does 500 lbs less than the 5.7l at the same ratios while the manual is almost identical to the 4.3l manual's capacities.
Max towing capacity, 5000 lbs.
8800 Ibs
7500lbs
10000
towing is not recommended
I have a 1998 GMC 1500 sierra 5.7 350 4x4 and it is 0.060
My 97 Expedition with the 5.4 towing capacity is 8,000 lbs. Yours should be the same.
1,ooo lbs.
See sources and related links below for a full list of automotive light bulb lamp part numbers for the 1998 GMC Sierra 1500.
The thermostat is located on the engine on a 1998 GMC Sierra 1500 standard. The thermostat can be found by following the upper radiator hose directly to the thermostat,
how do you change ash tray light bulb in a 1998 GMC Sierra 1500
17.5 qt capacity