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?

Re: Aluminum 8 3/4 Housing
 

I don't think NHRA would like that in Stock.

Re: Aluminum 8 3/4 Housing
 

.................

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 ...

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

Re: Aluminum 8 3/4 Housing
 

I ran one for over 3 years before I broke it ...

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

Re: Aluminum 8 3/4 Housing
 

Are we talking about carriers or housings

Re: Aluminum 8 3/4 Housing
 

Regarding NHRA, maybe Evan Smith could chime in on the illegality of aluminum center sections.

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

Re: Aluminum 8 3/4 Housing
 

Bob,

That'll happen when Ford buys G.M. and resurrects/exhumes Pontiac. :)

Bill

Re: Aluminum 8 3/4 Housing
 

Bill,

I guess that's like the AMC / MOPAR shotgun wedding that put Dana 60's in the AMX.

Just to set the record straight, the last Pontiac rolled off the assembly line 28 yeras ago in 1981.

Bob

Re: Aluminum 8 3/4 Housing
 

According to the GURU's a Dana is .2 slower anway. Thats why I just put one in my 3745lb stocker.

Herb Jr

I'm not a GURU

Re: Aluminum 8 3/4 Housing
 

Bob,
FYI, NHRA told Evans to take out his aluminum 9" center section. Even after it appeared in ND as a tech article. It falls under "no light-weight components unless otherwise specified" in the rulebook. Obviously there are many loop holes under that category.

Please email me at the address below. I want to discuss something else with you.
Thanks,
Jeff

Re: Aluminum 8 3/4 Housing
 

Jeff,
Thanks for that information.

Bill

Re: Aluminum 8 3/4 Housing
 

I heard "Bocephus" is getting a promotion to SS, what combo you going with?

p.s. - coolest car I've seen in years.

Re: Aluminum 8 3/4 Housing
 

I am no GURU but my personal experience has been that the better pinion placement on the Dana made up for the extra weight. I switched from an 8.75 with a spool to a Dana 60 with a spool (same axles) and the only real change was I quit breaking gears. The car seemed to run exactly the same.

I saw a post from Larry Hill earlier that switching to a Dana did not slow him down, although I assume he was able to maintain the same weight by removing ballast.

Maybe you are saying the same thing but being more subtle :-)

Bill Lamb

Re: Aluminum 8 3/4 Housing
 

I have heard of Max Wedge cars going faster with the Dana's. Just look under John Shaul's car, if it will make it faster it's on John's car.

Re: Aluminum 8 3/4 Housing
 

Years ago Car Craft did a back to back at the track test of an 8 3/4 to a Dana 60 in an A-Body. No difference.

Re: Aluminum 8 3/4 Housing
 

I have done this to two different cars and the A body car worked better with the Dana. The wagon we changed alot of stuff at once but its .07 quicker in 60 now than it was 2 weeks ago.

Herb jr

Re: Aluminum 8 3/4 Housing
 

I won't speculate on weather it's legal for Stock, but I built an aluminum 8 3/4 for a friend 3 years ago for a dragster that runs lo 7's and it 's holding up very well. .....As to the Dana , we used to take the Dana out of my Uncles SS/AA Baracuda and put in a 12 bolt for heads up and record runs. It was a whopping .03 quicker than the Dana... The car slowed by .03 when a 9" was installed!. ....Tom