I can't get my truck above 35. I shift out of first at 10 mph, 2nd at 20. When I go to shift out of 3rd at 30 the truck just bogs down at starts shaking.
I've checked the timing, changed the exhust gasket(burned out) the truck doesn't have a govener. Took off the top of the air cleaner and took it for a test drive, no changes.
the truck shifts fine 1st through 3rd hard to shift into 4th, but does go into it.