Re: GM Stocker rear end
 

Nowhere in the rulebook does it mention part numbers required. The new rear-end comes in the new car, the car is approved for Stock, therefor the housing is from the same manufacturer regardless of who built it. As long as the width is legal for the donor car it should be accepted.

Re: GM Stocker rear end
 

Through the woodland, through the valley....

Re: GM Stocker rear end
 

Just trying to make it harder to campaign an older stocker. Their way of slowly trying to push the high dollar cars on the people who want to compete.
It is going to bite them in the ***** in the long run.

Re: GM Stocker rear end
 

If that be the logic I will just go run NMCA...:p

Re: GM Stocker rear end
 

What's the point of wanting to run a 9" rearend ? Strength ? A typical 12 bolt is lighter, and has better efficiency. Why would you want to use a slower rearend ?

Drag Pac, Cobra Jet, and COPO are all inclusion cars (paragraph 3, section 10A), which are not "factory-production assembled, showroom available, and in the hands of the general public" (paragraph 2). That is why the 9" is not considered an OEM rearend for a Chrysler or GM, and therefore not a legal replacement .

Re: GM Stocker rear end
 

Don't want a 9"...just saying by the rules it is fair game.

"OEM may apply for inclusion of any special production runs into
the Official NHRA Stock Car Classification Guide. Special run
must include a minimum of 50 units of an already accepted body
style, need not be showroom available. Applications evaluated on
an individual basis. Acceptance will not imply precedent."

Nowhere in that paragraph does it imply it is not a legal part. Once included in the Stock category it is the same as any other car in the family. NHRA is going to have to include more wording in the rulebook to convince me otherwise.

Re: GM Stocker rear end
 

Somewhere in this conversation I miss the urgency of the argument and the "purity violation" factor. There are so many aftermarket rear ends in use now (how many 12-bolt rear ends did GM make that would bolt into a 3rd-4th generation F-body?) that the argument loses its effectiveness. If you think its necessary to keep mfr to mfr consistency, I guess that's okay. In the "old days", it had to do with durability, but the aftermarket has solved that, so I do not see why anyone would think there is an advantage using a rear end assembly based on another manufacturer's design.

Re: GM Stocker rear end
 

Thank You! This ship sailed years ago.

Re: GM Stocker rear end
 

Finally, some logic enters the discussion...thank you.

Re: GM Stocker rear end
 

Thanks, I didn't expect this much conversation on the request. My reasoning for using the 9" was the convenience of gear changes in a multi purpose vehicle. Additionally, the 9" style rear might look a closer to the original 56 rear than a 12 bolt....and there's a 9" laying in the shed.
Thanks for the responses.
Mike