That 7.25" GM had to be SERIOUSLY modified. (I've blown up too many stock
GM 10-Bolts in my time with a 480HP engine.) The GM 12-Bolt was the choice
for high horsepower street cars (at least it was back in the mid '80's -
early '90's).
GM is also now using the Auburn Gear unit in the '98/'99 Camaro and
TransAm/Firebird vehicles. The '99 SS Camaro (SLP Edition which runs low
13's all day in stock form - 325HP) has the Auburn unit installed from the
factory. These units are very capable of handling more than the factory HP
rating.
$0.02
In my case (S/C - Nitrous'ed '97 V6), i'll be looking at a 9.25" replacement
for the factory 8.25" differential.
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: DML: RE: Re: Gen III Durango axle to a Gen II Dakota Re: Jon
Jon, I know you have had your problems with that 8.25" rear, but from what I
understand the F body GM cars that produce over 300 hp use a 7.25" ring gear
and I know personally a friend who runs 10's in his 98 bird (500+hp) with a
7.25" rear with no breakage. I'm just wondering what the weak spot is in
the 8.25" DC rear??? Is the pinion diameter small, or just the materials
poor?? I wonder how those GM guys are making that 7.25" last??? What
do you think?
__________________________________
Matt--VA--Y2K-HEMI `00 Sport Plus RC
ŻŻ
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