[Ski-me]

Originally Posted by Keith Seymore

I skimmed the detail above; without digging too deep I would crank the caster way up: like 10 or 12 degrees.

You do this by adding shims between the leaf spring and the axle pad. This will greatly help with straight line stability.

The other thing I would check is the steering gear torques, both at the ends and "over center". There is a procedure in the service manual that delineates how to do this.

K

This could help. I would bring it into an alignment shop and get your true values. Each side is going to be different (Caster and Camber). The printout will give you details where your truck is at and the recommended windows. I've done this a lot messing around with tapered ball joint sleeves. Takes a lot of work to align these solid axle trucks.

Over bumps on the freeway, my blazer does not spring straight up in the air, it does go to one direction slightly. I think it needs fine tuning as Keith has described above. Mine isn't really bad but could use a slight shim (on one side).

You also need to see where your Toe is at. This is the least amount of work to adjust (either yourself or an alignment shop). You want it slightly toe "in".