? about lock-up 904 trans

[73Duster]

I have a lock-up 904 trans and was wondering if this can be converted to a non lock-up. I know the converter and input shaft are different, is there anything else that would needed to be changed? Are the trans cases the same between lock-up and non lock-up? Any help with this would be greatly appreciated. Thanks, Doug

 

[DealrTransTech]

Doug,
IMHO the easiest thing to do would be to get a non-L/U 904 and use it. Short of that, you would need to change the input shaft, pump, torque converter and valve body. You would also have to block the L/U feed hole in the case or replace the case. Non-L/U cases to fit 360 are avbailable from 72-86. The valvebody and case modification should be easy if a "full race" or "high performance" shift correction pkg is installed. Hope this info helps. Abe

 

[73Duster]

Thanks Abe. The trans came with a 360 engine I had bought and I was just wondering what it would take to convert over. I will look for another trans. Thanks again.

 

[DJVCUDA]

you can just run your lockup converter mopar sells high stall versions, and block off the lockup lines in the valve body....
if ya got a good reanny there no reason for another one!

you'll see a tube going front to back in the valve body.. it's the line to the lockup unit on the valve body... it can easily be unbolted and blocked off

 

[73Duster]

DJVCUDA,
So if I disconnect the lockup line from the valve body will the converter still be a lockup or will it be like a regular converter? Thanks for the info.

 

[DJVCUDA]

you will be eliminating the hydraulic lockup...