ideas from the group.
Truck= 1991 C2500 Silverado. Trailer package, 5.7 350 tbi with tbi riser plate and 4l80e trans.
120 Ltr tank.
Pulling 5200lbs travel trailer and about 1000# in the box of gear.
I only pull in drive, I dont tow in od.
Engine is strong, transmission has cooler and shift kit...