What can a GMC truck with a 305 motor haul?

Question

Can it haul a 4-horse trailer (22 feet long) with a gooseneck carrying 2 saddle horses & change quarters?

Answer 1

yeah, but you'll need a low rear-end ratio...... and don't expect much climbing hills.

Answer 2

Larry E is correct. The 305 was a great engine. It got decent mpg in full size cars and trucks considering it was the 80's and early 90's. They only have around 150-170hp with around 250ftlbs of torque. I agree that the transmission is what needs the most attention. If it is a auto, I would install a tranny cooler. Just take it easy and run in 3rd gear (not OD) at 55mph at the most.

I would not attempt any long distance pull with this set up.