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Re: 8 3/4 strength poll!! [Re: Qbird] #110722
08/27/08 09:37 PM
08/27/08 09:37 PM
Joined: Jan 2003
Posts: 4,323
NY NY
3
340duster340 Offline
master
340duster340  Offline
master
3

Joined: Jan 2003
Posts: 4,323
NY NY
8.75 rear is plenty stronge, having built one from scratch, i woudlnt do it again. for the money i spent i could have had a 9inch or dana60...this was a few years back when prices were still stupid expensive, maybe it has come down a little since then, but next time i am going d60 or 9.


1966 Dart GT ...down to only 1 mopar for the first time in 15 years!
Re: 8 3/4 strength poll!! #110723
08/28/08 12:08 AM
08/28/08 12:08 AM
Joined: Jan 2003
Posts: 74,907
U.S.S.A.
JohnRR Online rolleyes
I Win
JohnRR  Online Rolleyes
I Win

Joined: Jan 2003
Posts: 74,907
U.S.S.A.
Quote:

The 489 is fine, just use a solid spacer rather than the factory crush sleeve.

Sheldon




The 742 inner pinion bearing has longer rollers and more closely resembles in size the inner pinion bearing of the dana 60 .

Not that MP has been the poster child of doing things right in the last decade or so but when they made the alum. center section for the 8.75 they decided to use the 742 gear set instead of the 489 gearset , there was obviuosly a REASON for that .

YMMV

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