E4OD forward drum in 4R100

[early99powerstroke]

I'm still in the middle of building up my 4R100. I'm considering installing a fully splined E4OD forward drum because I've read that the 4R100 forward drums have a shorter splines and due to drag racing and sledpulling some people complain of the splines stripping and breaking the drum. Do I have to do any special machining to get the E4OD drum to fit in my 4R100 or will it just fit right in? thanks!!

 

[02POWERSTROKE7.3]

subd

 

[4.0l sahara]

fits right in I believe.

 

[CSIPSD]

Thats what is in mine... I cant recall if its a E4DO or a C-6 foward drum, but the last tranny I broke was just that, the splines stripped out.

 

[brian89]

I had stripped splines in mine, i took the drum out of my spare tranny and it had the longer splines and it fit right in

 

[range91]

Direct fit I would also stake the cup plug or tap it and install a grub screw. If the cup plug pops out will have no forward gears.