Maximum HP in 904 Transmission With the following parts:

I have using the same 904 since 1993 with a transbrake, it has been rebuilt once in 2004 when the ring gear broke and took out the rear spraq.

On the rebuilt i used red alto clutches and kolene steels, the front clutch has been modified to carry 5 disc...I use keval bands ...a 5.0 band apply lever,,,'
the front clutch pac also has the 24 spring kit instead of the large wound spring...
and i am using a Transzact Pro brake I bought in 1993...

So you guys Who SAY they wont work are correct....

Also my 71 Dart 360 with eddy heads has a 904 with stock clutchs and steels...but again modified to carry 5 disc...and same bands...same 24 spring kit...5.0 lever...and Tranzact Pro brake...It has 4 seasons of racing on it...

both trans use the aluminum plantaries .....they are 904s not the 999

the rear servo in both trans are the Sonax replacement servo which i think cost about 12 dollars....not a high dollar billet item..

So that 904 does not work either...please ship any unwanted 904 to me...

69 barracuda runs in 10.70s ...and the dart ran 11.06 in MATS In VEGAs...