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Old 03-31-2024, 08:17 PM
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Join Date: Feb 2000
Location: NH
Posts: 3,261
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Quote:
Originally Posted by ANDYA View Post
When I purchased my 65 GTO it had the factory rear with stock Ralley I wheels. After measuring I decided on an aftermarket wheel 15 x 8 with a 5” backspace and 275 60/15 tires. The wheels fit nicely in the wheel wells. When the time comes for an upgrade I’m going with a Moser 12 bolt rear at the factory 65 width. If I ever want to put the Ralley I rims for whatever reason I know they will fit like stock. The trick is to find a wheel you like in the offset you need.
This is my experience with a '65 using a 1969 Chevy 12-bolt from a Chevelle. I used a 8" rim with a 5" backspace with 275/60-15 tires.

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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule.