M978 Shimmy above 45mph

[matt2491]

Anyone know how to adjust HEMTT front wheels / steering alignment? I have a side-to-side shimmy when out on the highway and I think it's because the two sets of front wheels aren't aligned very well. When the truck is parked straight you can visibly see the wheels not quite pointed in the same direction. So I suspect they are fighting each other when up to speed?

By the way, I put a half gallon of antifreeze in each of the 4 front tires and it noticeably helped smooth out the up-and-down bounce above like 30mph. Actually kinda surprised it worked. But now the shimmy is more obvious, so I'd like to try to address it.

I made sure the tires are all set to the same pressure (60psi - contact patch seems good).

 

[simp5782]

You can adjust the toe on it. You must remove it from the knuckle and turn it in then put it back in the knuckle.

The walking beam itself can be adjusted using the single bolt thru under the axle. There Is a camber adjustment on it.