RE: Rear end bench mechanics

From: Chad Evans (hemidak@msn.com)
Date: Fri Apr 15 2005 - 02:39:05 EDT


detroit does make a lsd fopr the 9.25. look under the true trac section i
am pretty sure they make a lsd for you. also check out the rear end covers
made by LPW.

http://www.tractech.com/docs/TT-List-LTPM1004.pdf

http://www.lpwracing.com

>From: "Woodruff, Jason P" <jason.p.woodruff@boeing.com>
>Reply-To: dakota-truck@dakota-truck.net
>To: <dakota-truck@dakota-truck.net>
>Subject: DML: Rear end bench mechanics
>Date: Thu, 14 Apr 2005 13:53:11 -0700
>
>
>I've got ideas swimming around in my head, I'll toss them out there for
>expert comments. This is all long term goals appling to AutoX racing.
>
>I need some sort of new locker or LSD. The factory LSDs aren't doing it
>for me. If it's a locker it has to be real subtle in it's locking and
>unlocking characteristics, as I don't want to upset the truck in a high G
>turn. I've been recommended Torsen T2-R, Eaton, and Detroit traction
>devices, but Torsen and Eaton have no Chrysler applications and Detroit
>only handles the 8.25, not my 9.25.
>
>I've heard of people modifying the stock LSDs by adding more clutches?
>I've never gotten into the diff, so I don't know what this means or how
>hard it is to do.
>
>I'd like to have much higher gears as well. The 3.91's combined with the
>26" tires are putting me between 2nd and 3rd gear at most races. 2nd gear
>tops out around 45-50mph and 1st gear is useless. If I could find a final
>gear ratio to get me around 60mph in second, that would be great. I notice
>the ring and pinion options are much greater in the 8.25 differentials.
>
>So heres a wild idea. I find someone with a 8.25 differential to swap
>axels with. Would this be impossible or easy? Then I could get my Detroit
>differential and what ever gear ratio I find appropriate.
>
>What are the Cons to a 8.25 axel? I'm not a drag racer and there's not
>much more than 220hp to the wheels, but they are planted on race tires (not
>quite as sticky as drag tires).
>
>Jay W
>505/287 Dakota
>
>

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