4070B shake, when driving 65

Check u-joints.

 

My first go to is jack up the front end one side at a time. Put a block of wood close in front of the tire and spin the tire in reverse of normal rotation. Do that with the block centered and at an angle on both sides.

 

A 4070B that shakes? And a "dribbling feeling"? That's a new one for me. I don't understand what the problem is. Might be the driveshaft lost a weight. If it happened all of a sudden, I'd check the obvious. Engine or trans mount? U-joints. If you feel it in your ###, it's probably the driveline. The Transtar I drove, which was about the only cabover I liked, shook from the time I left the yard, until I returned. And 65 mph? I'm proud of you! Got any pics of the old gal?

 

Id probably go with checking u joints, like others said, and see if that drivers side shock is froze? Is it only from 62- 65 mainly?

 

Was it on a Monday? My 1st TT job driving a Mack, the boss said he got complaints, the trucks always rode rougher on a Monday, than on a Friday,,,

 

Nice,,,by gar, that takes me back. I drove a truck just like that. They were the most popular truck of the 70's. Like I say, if the shaking is felt in your arms, it's coming from the front, in the seat, it's the driveline. While unlikely, might want to give those lug nuts a turn, but I'd bet it's the driveshaft.