unstable at high speeds

[alonzo]

Originally Posted by dieselhead

one more quick note, the rear axle adjustment slots are way off on my 07 gy5. When I first set the wheel up out of the crate, I figured I would just match the open slot hole behind the axle to both sides. Then I eye balled the tires in line and ended up with nearly 1/4" difference in the slot holes after readjustment! Calibration is non existent on these adjusters.

yep, I think a better gauge is to look at the filth and grease on your sproket, if it has a nice even clean spot where the chain pulls from you are straight, if it has a slant to the scum line, you need to adjust.