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