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-   -   Aluminum 8 3/4 Housing (https://classracer.com/classforum/showthread.php?t=17408)

House of Darts 04-29-2009 11:03 PM

Aluminum 8 3/4 Housing
 
Any thoughts on using Mopars' aluminum housing w/billet caps in a 440 Dart Stocker? Will the 742 hold the torque?

Jeremy 04-30-2009 10:51 AM

Re: Aluminum 8 3/4 Housing
 
I don't think NHRA would like that in Stock.

Dusty Lowell 04-30-2009 11:14 AM

Re: Aluminum 8 3/4 Housing
 
.................

Chuck Beach 04-30-2009 12:32 PM

Re: Aluminum 8 3/4 Housing
 
Dusty,
You can use one in stock and MOPAR (if they are still in business) pays contingency. The problem is when you break a rear end it will usually break the aluminum housing. Been there done that. I asked several manufacturers if they can fix it and they said no ... they are about 11 lbs. lighter than the cast one and are not suppose to flex as much, but they are expensive and won't take the impact of a rear end breakage ...

Jeremy 04-30-2009 01:47 PM

Re: Aluminum 8 3/4 Housing
 
Chuck, I asked NHRA about this a couple of year ago and they said no. I think I still have the letter some place. Maybe this has changed, but are you sure as I would like to use one.
Thanks Jerry

Chuck Beach 04-30-2009 01:50 PM

Re: Aluminum 8 3/4 Housing
 
I ran one for over 3 years before I broke it ...

Myron Piatek 04-30-2009 05:05 PM

Re: Aluminum 8 3/4 Housing
 
If the aluminum center section is listed as a Stock class contingency item, it should indicate that it is legal for use in Stock. It is legal in IHRA and I've been using it for almost 2 seasons. I thought I would be hearing some noise and possibly replacing the ring & pinion by now, but it seems to be holding up rather well. I've only had high 1.40 60' times, usually 1.50-1.51, but I have to weigh 3,530+ lbs.

On a similar note, the Moser 8 3/4 housing has been approved by NHRA for Stock!

http://www.dragracingonline.com/agen...0-xi_4-56.html

Paul Precht 04-30-2009 10:32 PM

Re: Aluminum 8 3/4 Housing
 
Are we talking about carriers or housings

Jeff Lee 04-30-2009 10:51 PM

Re: Aluminum 8 3/4 Housing
 
Regarding NHRA, maybe Evan Smith could chime in on the illegality of aluminum center sections.

Bob Mulry 05-01-2009 12:46 PM

Re: Aluminum 8 3/4 Housing
 
Jeff,

That's a Ford and he is a technical expert who is a published author in National Dragster.

Now my plan is to put a Ford 9" housing with a Strange Aluminum 12 bolt center section in our stocker and see if we can sell that to NHRA.

Bob


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