'65 diff off center 3/4" - Chevelle Tech
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post #1 of 6 (permalink) Old Feb 1st, 20, 10:37 PM Thread Starter
 
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'65 diff off center 3/4"

Im looking for advice. I am resto rodding a '65 Chevelle and have found out the diff is 3/4" off center, meaning the tire on the driver side rubs on the fender lip while I have 1.5" between tire and fender on the passenger side. With the rear bumper bolted on the frame, the gap is equal on the body so I dont think the body has shifted on the frame. I have replaced all 4 of the top diff bushings, it its still off center. Currently I have IROC wheels on it so I am considering wheels that would bring the wheels in atleast an inch. But has anyone ever had this problem and figured out how to get it centered again? All Ive read about so far is putting in adjustable arms or shifting the body on the frame. which dont seem to be the right method of correcting it. Thank you for any suggestions.
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post #2 of 6 (permalink) Old Feb 2nd, 20, 1:10 AM
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Re: '65 diff off center 3/4"

Measure the distance from backing plates to the frame to determine if it's really a rear end problem. Your frame may be tweaked or it could be the body needs to shift. Remember a 3/4" difference only needs a 3/8" adjustment to get things evened up.
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post #3 of 6 (permalink) Old Feb 2nd, 20, 2:35 AM
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Re: '65 diff off center 3/4"

Pretty usual the rear is off center, maybe not as much as 3/4”. Have the quarters been replaced?
Adjustable uppers help if you cant find any other problem with frame or body.

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post #4 of 6 (permalink) Old Feb 2nd, 20, 6:57 AM
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Re: '65 diff off center 3/4"

Body may need to be shifted. My rear was off 3/8" . I adjusted the uppers a couple turns and centered perfect. 3/4" is a lot.

Tighten it till it strips and back it off a quarter turn.
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post #5 of 6 (permalink) Old Feb 2nd, 20, 8:28 AM
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Re: '65 diff off center 3/4"

I think mine was like 1/4 or 1/2 inch off. Also check your bushings if they are really worn the control arms can slop from side to side. Also if you have to turn into your driveway or some kind of angle and your bushings are worn it (and you are measuring right after that) could be preloaded when you are measuring and straighten out a little if you were to drive straight for a while.

Last edited by Lew540; Feb 2nd, 20 at 8:30 AM. Reason: adding stuff
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post #6 of 6 (permalink) Old Feb 17th, 20, 2:31 PM
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Re: '65 diff off center 3/4"

X2 on adjustable uppers....

I replaced all body bushings and hardware a few years ago, made sure everything was kosher....
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