Jamieat

Also,

The truck would not shake/vibrate if I had a decent load in the back of the truck either.

TheOldRaker

I have loaded the truck down with a bunch of tools and wood and had pretty good loads, but that hasn't ever helped with the shaking.

It's an 07 Lariat 4x4 btw. Thanks for your long reply as well. It's good to hear other's experiences.

TheOldRaker

Well....I threw on new rotors and pads today. No help... I'm so tired of this shake. I wish I could throw on a complete set of someone else's tires and wheels just to see if that's the problem. If it is, I'd buy new tires tomorrow!

If anyone else has any other ideas, let me know.

And to save anyone reading through the entire thread, so far I have:
1. Replaced U Joints and Drive Shaft
2. New Front strut assemblies (and added a 2 1/2 inch level kit.)
3. Rebuild the entire front end, new lower ball joints, Upper Control arm with installed Ball joint, Sway bar links, sway bar bushings, and Tie Rod Ends.
4.Replaced Driver side Bearing.
5. New Rotors and pads.

Jamieat

you can have the tires "road force" balanced.

This puts a load on the tire as though it were on the vehicle. This will detect any issues in the integrity of the tire or if there is an issue with the rim.

Most "modern" tire stores have a road force machine. I always have this done when balancing my tires and it does make a difference.

TheOldRaker

Well, I gotta say, I'm embarrassed. I purchased new tires, and the truck runs smooth. Well, at least I have a new suspension, and U joints.

99S351

**** happens, who knows if you didnt replace the whole front end first it might still be shaking. But from reading this thread I'm quite confident I need new tires, my parts replacement rvials yours lol

TheOldRaker

Well, I jumped the gun here celebrating. The new tires fixed the shimmy in my steering wheel that was happening at most speeds, but the "speed related "HOP"" is still there. The truck still shakes up and down at around 50-52, and 70-72 roughly. It's a very obvious up and down shake. Any other ideas?

TheOldRaker

Little bump here. Anyone have any new ideas here?

Humantorch

Put about 500lbs in the bed of the truck. Seems silly but my truck is a work truck and doesn't like having an empty bed.

FitterJones

try a bottle of friction modifier in you rear diff