Superflie

I have a 91 4runner with a 4" lift. I purchased this a couple months ago and have been fighting this issue for some time. When i hit the freeway and i'm accelerating around 60-80ish it'll start to wobble from side to side until i let off the accelerator. I replaced the tires, cv axles, shocks front and rear, rear sway bar and drop bracket, and tie rod ends. Its definitely not as bad, but i'm not sure where to go next. Almost everything else on this runs and works great. Someone had said something to me about "torque wobble" and said I should replace the bushings in the rear control arms. I just dont wanna keep throwing parts at it. Has anyone heard of this issue or know where i should go next? I've always dug toyota's and I got rid of a cherokee to get this runner, it was well worth it, even with this issue.

myyota

What kind of shocks are on your 4Runner ?.

Superflie

I have procomp es9000 shocks i just put on, also I replaced the steering stabilizer. myyota, mine looke the same as yours just a 2gen, lol. The tires and wheels are all new. If it was the drive shaft or mounts wouldn't it happen at all speeds?

myyota

Just throwing out an idea here, but have you checked the wheel bearings front and rear to see if there good ?. When i got my 4Runner the rear wheel bearings were worn so bad that that the center of the bearing that slides over the axle was just flopping around, and when we did the solid axle swap the front axle was rebuilt with new bearings and seals because it was almost just as bad.

ckblum

When you say body roll I think of a slow leaning on the body, when you say wobble do you mean like a quick jerky vibration or like a slow wobble? I'd say it's definitely not body roll as that is entirely different all together and not really rotational related.

Tire's could be out of balance but since you say it stops as soon as you let off the gas maybe check your drive shaft and the U-joints, also wheel bearings too but I have a feeling it could be the drive shaft wobbling once load is applied.

tc

Vibration under power, smooth when off is usually u-joint - typically the one back at the rear axle pinion.