"Sine wave" vibration at 70 mph?

uncleslam23

New member
So I've had this weird vibration since I bought the T4R earlier this year. It's only at 70mph and above.

Basically, the vibration bounces back and forth from the front to back of the truck. I'll feel it creep up to the front of the truck (especially in the steering wheel), and as soon as it peaks it starts to move towards the back of the truck. Each "cycle" is probably around 3 seconds. So...any ideas? I just replaced the steering bushings and sway bushings today, and I plan on replacing my U joints next weekend. It looks like my tranny mount might be shot as well. Aside from that I'm at a loss.

I know the first step in diagnosing these things is usually to get tires balanced and rotated. I plan on doing that very soon, but if that were the culprit, wouldn't the vibration be constant?
 

Attachments

  • vibration.jpg
    vibration.jpg
    35.7 KB · Views: 422
Register to hide this ad

Members online

Forum statistics

Threads
278,312
Messages
3,554,089
Members
248,016
Latest member
Advally Service

Trending content

Back
Top