how much would it cost me for a brand new Eaton Posi and new 3.73 gears? what would be the best thing to do. i have 650$ to spend. but i dunno. ive been looking for a new rearend or a used posi for over a month. and its just starting to **** me off. im very impatient. itd be a daily driver so i don't want to high gears. i think 3:73's would be good.. whats a good posi to go with?

how much time would posi and gears knock off on my 1/4 time. i have a limited slip 3:23 right now.

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1967 Camaro SS stock. runs 15.23 @ 91.3 mph... not to bad considering im a 16 year old pizza boy.