Even Ma Mopar knows. The 2015 Drag Pak Challengers have a TH400.

Seriously? Hmmm learn something new every day.

Yep..........and previous Drag Packs came with glides. Think they all have 9" Ford rears

Well I did know that the Torqueflite 8-speed is actually a disguised BMW ZF8HP 8-speed.

If anyone was going to need aftermarket 727 cases, it would be Pro Trans. 727 cases will eventually become very hard to come by, so a new case would come out of necessity. It would however, have some modifications to your standard 727 case.

Haven't heard that name in a WHILE! Frank, at Kinnetts did machine work for me in the 80's. I even bought some of his old hemi stuff. They cut the blocks so low on the deck, and lighten them so much you had to run more stop leak than water lol.

doesn't A&A make new case's . not sfi

Are using a Transbrake??

...and there's a lil trans shop in Cal that can spin that around:

OUTPUT SHAFTS==
"you can now install a Pro Trans 727-904 trans in a new drag pack Challenger that comes from the factory with a TH400. It is the same overall length as the TH400 and have TH400 input and output spline. It is also set up to use your existing Reid Racing bell housing that came on the TH400. Just bolt on and install into your car"

No opinion.... just keeping it interesting.

If i could get a 4l80E to work with my pushbuttons, i'd have one in next week.
i have a '65 cable shift 727. on;y thing that hasn't been upgraded are the shafts.
it's a 4,500lb car that makes just under 640lbft....

They have a fab 9"... at least in the design builds

As we all know most Mopar's don't have a good enough cylinder head to make enough power to break a 727 anyway, right? If I got to the point where I was braking stuff I'd have no problem switching to a 400 / 9" axle. There are 4 of us that hang out and race low 9/high 8 second Mopar's. They range in race trim from 3000-3750lbs. The two lightest are Glides, mine is a 727, the third is 727 w/brake, the heaviest. Mine is next heaviest but is a foot brake, the glides have trans brakes. Mine by far has the most passes. Both the aftermarket glides have broken expensive (in my book over $600) aftermarket parts after being modified. Mine has an aluminum drum ($600) and a Super Sprag ($200), the rest is used stuff. The 727 with a brake has a good drum ($600), super sprag ($200) and a steel front planet ($450). Both 727's hit the stock aluminum planet pretty good, the trans brake car rolled the stock sprag. Mine got another stock planet as the first one went 250+ passes. Neither have hurt anything costly after the above mentioned mods. I believe a M&M 400 would be awesome. It would also cost more than I have in my motor.
Doug

My old combo 408 with 93 pump gas, single 200 shot and foot brake went 9.26 at 145mph and I'm rocking a 727. A Reid ultra case th400 will be in my future plans but for now I hope to get away with a transbrake in my 727 for awhile till I can build and get the parts for the th400 swap.

No. The trans has a brake in it, but I don't use it. Always footbraked the car.

Fab 9" is illegal. Can't have that.

That was what I seen on the first drag pac car

They call it a 8 & 4 quarter diff..

Being the Drag Paks are not a standard production vehicle they can probably designate the differentials how ever they please. If the 9" isn't legal how do they get by running glides & T400s?

It's legal if it was approved and installed at the factory or contractor when the car was built. Probably has a Mopar part number also. "Special production run" approved by NHRA. The new FS classes don't follow traditional Stock rules.

I wondered if that was the case.