Originally posted by 88 Runner SAS
I get a terrible shaking back and forth in the wheels sometimes at around 25-30mph. Ive checked everything in the front and can't find anything loose. I think I'm going to replace the shock on on my steering and see if that helps it.
You have Death Wobble. Is your Steering Box moving at all? I had Death Wobble when one of the mounts broke on my box. New box with a good, solid mount fixed it. Heres more info about DW.
I had horrible Death Wobble after adding my HighSteer. I researched it and found that the Alignment should be 1/4 to 1/8" Tow IN, not Toe out. The FSM says 'Toe In', as well. I pulled my tires off and did a Tape Measure alignment-
To properly align my truck, I clamped 2 pieces of square steel onto the Rotors and measured out 7.5" from the center of the hub, front and back. This measurement is exactally where your wheels would sit (7.5" + 7.5" = 15" wheel). From this measurement, adjust your Tie Rod ends so that your tires point IN at the front, by less than 1/4". I adjusted my Toe In to about 1/8" +/- and took a drive. There was a night and day diffrence!!
I am currently running no Steering Stabilizer, 35's, and about 6" of lift between springs and a lift shackle. If there were any hint of DW, it would definatelly manifest itself.
A steering stabilizer is just a bandage to cover the real problem.
*Check your toe in, should be 1/8-1/4".
*Did you rebuild the front end?
*Trunion bearings - ball joints bad.
*Pre-load to loose on the knuckles, the bigger the tires the closer to the high end the pre-load should be.
*Not enough caster.