When I had my '92 Chevy 1/2 ton 2WD (5.0L) it pulled my 14' aluminum no problem. After my truck got stolen I was borrowing a friends '01 Ranger (4.0L) and that truck really struggled going down the freeway. It seemed to run out of accelerator. I would kick the gas peddle wanting more and it just was not there.

Now I have a '99 Chevy 1/2 ton 2WD with a 5.7L. Nothing like having 300 HP at your disposal when getting on the freeway or going over the pass.

If you are going to be doing a lot of towing an investment in a bigger motor/truck will be worth while.
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Carl C.