I have read articles in the Mopar rags that indicate you can build an 8.25 to
last behind a light weight (A-body) car running a 600HP small block and an
auto. Considering the number of 12 sec A-bodys with 8.25 out there I would say
you would be fine. I don't know if the Trac-Loc limited slip would be the first
choice though.
I will be running an 8.25 rear end behind a hot 360 (375 to 400HP) in my 68
Barracuda with a 4spd. This particular rear end spent several years behind a
360/380 crate motor in a 69 Dart before I got. The PO was going to rebuild it
with 3.9 gears when he got the opportunity to pick up a 8.75 with 3.9 gears for
about the same cost.
I went through it and rebuilt it with 3.55 gears (had 2.9 gears) and put about
8K miles on it last year behind my hot rod \6.
Dave Clement
99 SLT+ CC 4x4
In article <200503141401.j2EE1OH05245@bent.twistedbits.net>,
rgdeaton@worldnet.att.net ("Ron Deaton") writes:
>
>
>
> Well the Hemi Dakota convertible is beginning to be assembled, now that I
> have a couple of other projects out of the shop.
>
> I have serious doubts about the 8.25 rear being able to handle the 5.7L
> Hemi. I have a Trac-Loc unit to install and thought that it might help.
>
> I know that there are strong opinions for and against these rear ends, so
> let me tell you how I plan to use the truck.
>
> It will probably NEVER see the drag strip, except for a run or two
> just for grins.
>
> I am using the 545RFE 5-speed auto that came with the engine. (Both
> are out of a 03 Ram 1500).
>
> It will probably get nailed occasionally on the street, well more
> than occasionally.
>
> The ratio is 3.92, and tires are 235-50R 18, which is about the same
> as stock diameter.
>
> I have looked at the Drag-Truk site and there seem to be a lot of fast Daks
> out there that are running the 8.25".
>
> So, I'd like to hear your opinions, experiences, etc.
>
> If anyone knows of an almost direct swap with a 9.25 or 8.75, I'd like to
> hear about that as well.
>
> Thanks,
>
> Ron
>
> 1989 Hemi Dakota Convertible
>
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