crewcab higgy
Junior Member
- Joined
- May 8, 2015
- Posts
- 23
- Reaction score
- 0
- Location
- chula vista
- First Name
- tim
- Truck Year
- 1989
- Truck Model
- r3500
- Engine Size
- 454
My truck has had a slight pulsating vibration at highway speeds hardly noticeable. I put my new motor in and drove it last night and the vibration got worse. Before it had 2 worn out motor mounts and now it doesn't but idk what it could be. It happens on the throttle at highway speeds in third and feels like I'm hitting the rumble strips in 1/2 second on off pulses in 3rd. In second it vibrates bad at above 2500 rpm.
It's bad enough I'm considering towing it to a shop but I'd like to make sure I'm not overlooking something.
Also 454 th400 dana 70 combo
It's bad enough I'm considering towing it to a shop but I'd like to make sure I'm not overlooking something.
Also 454 th400 dana 70 combo