another 7.5 to 8.5 rear swap question - Chevy Nova Forum
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Old 6th-April-2011, 01:14 PM   #1
pphil

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another 7.5 to 8.5 rear swap question

i am almost ready to swap the 7.5 for a 8.5 and got to thinking
will the original drive shaft work or will it need to be shorter?????

i know on the G body it was 1 inch shorter .....
thanks in advance

oh yea...........

new rear is a 8.5 housing new eaton posi carrier with upgraded springs
30 spline yukon axles and new yukon 3.42 gears all new from top to bottom and end to end.....
scott
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Old 6th-April-2011, 02:38 PM   #2
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The driveshaft will be about 1.5" too long.
Here is a photo of the two side by side, the holes in the peg board are 1" spacing.

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Old 6th-April-2011, 03:43 PM   #3
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Our local driveshaft shop shortened my driveshaft, put new u-joints on it, and balanced it for under $100.00. If your shaft is too long (hard to imagine having that problem), at least it's a relatively cheap fix.
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Old 10th-April-2011, 01:05 AM   #4
pphil

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ran out to the local pull a part and got a short drive shaft today for $15.00
thanks for the responses

scott
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