What does having a loose rear bumper vs a tight one?
wow, learn something every day. I DID use the rear bumper to control the use of the inside rear. BUTT, looks like I didn't understand it back then as well as I don't understand stuff now.
Here's what I found on the web just now:
7) Be sure to torque the rear bumper bolts at all times to 150-200 inch lbs.
You need to re-check the bumper bolts continuously as the rubber in the frame will
squish down a little every race (very important).
well, it worked for me as an adjustment. ...