75gmck25
Full Access Member
- Joined
- Oct 13, 2016
- Posts
- 2,266
- Reaction score
- 2,210
- Location
- Northern Virginia
- First Name
- Bruce
- Truck Year
- 1975
- Truck Model
- K25 Camper Special TH350 NP203
- Engine Size
- 5.7
Also check your cab bushings to see if its dropped down on the transfer case or tranmission. When I replaced my cab bushings I found that the cab was sitting on top of my transfer case and transmitting all the vibration from the drivetrain. After replacing bushings I thought I had an engine problem at first startup because it sounded so much different from the driver's seat.
Bruce
Bruce