heres the senario, I have a 95 f150 4×4(locking hubs) with 260K on it. When I go between the speeds of 50-60 km.hr my truck shakes so violently that it feels like a jet plane is taking off beside me. hubs are on (free and in 2wd) It is not Ujoints and it is most definitly not and tire or wheel balancing. I know this because I recently got that work done. The shaking only happens when pressing the gas pedal at the speeds mentioned above. If I am in neutral going down a hill it is smooth riding but if I press the gas between 50 and 60 km.h it shakes violently. Its not gear either in 4th or 3rd I’ll experience the same thing. (its a 5spd)
I was on ice today not moving and I accelerated to 50km.hr while not even moving ant the shaking occured! I was stationary and only the back tires were spinning yet the shake occured between 50-60km/h
someone with experienc please help..