Re: Factory posi install
Here is a link to help you pattern the gears. Also don't forget to check backlash. http://www.sierragear.com/ring-and-pinion-gear-pattern/
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1970 Short Wide
5.3 4L60E BlackBear tune
3:73 gears, Boyd's Tank
2.5 / 4 drop 5 lug disc brakes
Vintage Air
18x8 Ridlers 255/55 frt. 18x9.5 275/60 rear
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