The problem i am having is when i am driving the truck it feels likes it doesn't wont to pull and i have already gotten the transmission rebuilt becaues of it and that not the problem.
You mean have power under load, as if pullin' a trailer full of cynder block? Suspect engine, not tranny. Is it a turbo 350?
I would bet it is a fuel delivery problem!
Bad EGR, plugged CAT, plugged exahaust, retarded timing, vaccuum leak bad operating temperature will cause this to happen~
Sounds like your engine check your plugs and distributor
not for nothing but have you checked the rear brakes? [or emergency brake]
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