Thread: Tranny Question

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I have a 904 trans in my A-Body Plymouth. To my understanding it's what is called a "short shaft" 904 as refering to the output shaft and tail housing length. What I would like to know is, first, what the internal differences would be between the short and long shaft trans', if any? And also, what vehicles came factory with the short shaft 904?

I bought my duster, originally a slant 6, 3speed on the floor car that had been converted to a V8. I've been slowly redoing the bogus swap job replacing parts, brackets, etc... with the correct stuff. The driveline was too long when I bought the car (was hammered all the way into the tranny) so I pulled it out and had the driveline shortened and balanced. Costed me a bit $$$ so I was hoping to find another trans to rebuild as a spare.
Thanks ahead of time

http://www.autohobbydigest.com/a-auto.html

ALL 904s are short, ALL 727s are long...starting in 67 all A-Body autos got bigger trans tunnels and 727s....

there is also some info there on crank and torque converter intercahnge...they chnged TC and had to chnge the cranks to match...important info if you are crossing the 67/68 year 'boundary' with either item...

If your just looking fo a spare trans, look for a 999. It has a lower first gear and wide ratios which will help you get out of the hole faster. It is a stronger trans and the same size as the 904.