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Old 08-07-2013, 06:20 PM   #4
Myron Piatek
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Join Date: Nov 2001
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Post Re: DP rear axle assembly

Quote:
Originally Posted by Eric Merryfield View Post
For the super brave I have a NOS in the box sure-grip for the 8 1/4...I wouldn't do it but you could....the 9 1/4 will not work due to lack of Spool and gear choices.....but you could run it with a sure grip, I run a nice detroit locker in the Lil Red this way.

8.75 and dana 60 are your logical choices, more gear choices for the dana 60 and of course it will live behind any of the DP motors, whether or not you gain any ET with a 8.75 is a consideration, as is your tranny if the ring and pinion goes.
Wasn't there a SS/AA Cuda racer here in the southeast that ran a 9 1/4 rear? He later tried Pro Stock - Maybe a Duster, then Volare. X&*#@* I can't think of his name. (Not Bagwell.)

A Dana 60 is actually a pretty efficient rear due to the ring & pinion orientation. 12 bolt is the best and 9" the worst. There was a magazine article about it years ago. I've heard of some racers switch between the Dana 60 and 8 3/4", adjusting the overall weight, and didn't see any ET difference worth mentioning.
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