(After poking around, this probably should have gone into aftermarket suspension, sorry...)

2000 F150 4.6L, parts already installed:

1. SuperLift 4-5" Suspension Lift
using SkyJacker softride rear 4" "lifted" leafs, no lift blocks in suspension
with the single steering stabilizer
and two-link rear suspension traction option
2. PA 3" Body Lift
3. 4.56 gears

All bushings, suspension components, etc. are new except rear shackles (which I plan on replacing).

Running 16x8" wheels with -14mm offset / 5" bs wheels and 33" snow tires, a little vibration but near factory ride quality.

But, while using Interco Tire's Bogger TSL (BIAS ply) 37x13x10 on a Mickey Thompson Classic II 16x10 with -32mm ofset / 4 7/16th" back space wheel, the truck has a really bad shimmy at 40 MPH that smooths out with a few miles of highway driving.

Would going to a high quality 35" radial (like a 315/75/R16 BFG TA) help quell the vibration, or am I in the "rediculous modification zone" and need to back the wheel offset down a notch?

What are you guys with similar trucks and lifts running? Any vibration problems?

TIA,

Jack

 

You have just learned that boggers aren't the best highway tires. They were designed soley for the mud. BFG tires are pretty good all around tires. If you use the truck to play in the mud, look into super swamper radials. They aren't too loud, don't flat spot after sitting, and ride on the road pretty good, too. Hope this helps.

Robbie