why does my 1974 FJ40 shimmie at 60-65 mph (1 Viewer)

[jdr4282]

I get bad vibration and noise at around 55-65...any ideas as to why?

 

[JohnnyC]

Wheel out of balance

 

[rkymtnflyfisher]

Bad driveshaft angles.

 

[rkymtnflyfisher]

It has a 2F.

 

[ceylonfj40nut]

Check drive shaft. Make sure bolts are tight. Check if driveshaft is balanced.

 

[JohnnyC]

It has a 2F.

A 1.5F

 

[rkymtnflyfisher]

A 1.5F

I knew someone would correct me on it sooner or later!

Hell for all I know it has a Cummins 6BT under the hood!