Tacoma Shimmy at 70 mph

Hello Everyone,

I'm new to this web not sure where to find answeres to my problem. Just bought a 98 Tacoma 2wd 3.4 w/5spd. Turns out it has a shimmy/vibration that starts at 70 mph no matter if I'm in gear or neutral. I put in new KYB shocks and had front end aligned and wheels balanced but no help. Wheel bearings seem fine, they're not loose and the truck stops smoothly. Any ideas?

Thanks

1frkdog

 

Swap the wheels front to back. Does the shimmy change? If so it's wheel balance still. Maybe a bad wheel or tire that simply won't balance. Maybe you need a more elaborate balance done like a road force balance.