Another help question

Hey guys just been having some vibrations on the interstate about 77-80mph. The whole inside of the truck shakes like shit, if i look next to me my passenger seat is just a shaking away at those speeds. Idk what the deal is but i know it should not feel like this. Running 285/75/16 duratracs but i dont think that is the problem. Also have the ecgs bushing fix installed already. Any help would be great. Thanks

 

Any mods done to truck before you started feeling vibrations?

Or maybe a hard wheeling trip?

 

I am the 2nd owner. I bought it with 2400 miles on it. The original owner put 5100’s on all 4 corners but left the stock coils and uca on. He also put 1 inch blocks in the rear with the stock leaf packs. Rides hard as shit, was thinking maybe this setup has something to do with it. Plan on going for some kings and dakars here soon

 

Cheapest thing to try is getting the tires rebalanced. If they are good then it sounds like you are on the right track. Good luck.

 

Ditto on Capt's comment.

Wouldn't hurt to have a tire shop check balancing of tires.

If balancing doesnt help, rotate tires, and if it feels it moved to rear maybe a wheel could be bent (but am thinking a balancing would catch that? But not sure)???

Suspension setup while maybe not best route shouldnt create vibes after a certain speed, if anything i'd say it'd be constant and just get worse as speed increases.

Good idea on getting a real suspension on it soon, that should help with overall comfort of ride.