RE: Mopar 8 3/4 rear strengths?

["Widiker, John D" <john.widiker@xxxxxxx>]

I've blown up two 742 and one 489 case. BUT.... It's only the sure grips and
one bearing cap that have fragged. Go with a Detroit locker and the damn
things are damn close to bullet proof. I also attribute the attrition rate
to my "burnouts that can be seen from space" driving style. With my
experience I wouldn't even consider a 741 case. Go as beefy as possible and
avoid the stock "posi".

~John

-----Original Message-----
From: Joe [mailto:jgray_55@xxxxxxxxx] 
Sent: Tuesday, November 02, 2004 1:24 AM
To: AMClist; BadAssGremlins
Subject: Mopar 8 3/4 rear strengths?


Anbody familiar with the Mopar 8 3/4 rearends?  I'm
going to instal a road runner housing assy  in our 74
AMX  behind the  freshly built up  401(9:5/1
compression/comp 280H..ported heads... 1 7/8 headers,..etc..Question..there
are three diffrental 8 3/4 differental casings..# 741,742,489. I know the
741 is the smallest diameter pinion shaft and is the weakest..BUT..HOW weak?
Anyone used one?  I've located several 741's and a couple of 742's that i
can swap  some parts to get.Thanks for any help, Joe(still trying to finish
this car for my wife after gettin laid off....SUCKSSSS)


		
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