Ford NP203 doubler/split case question (1 Viewer)

[BBrianr]

I have done a search and have not found much on the Ford NP203/Toyota Split Case doubler. I am dropping in a EFI 351 with a E4OD tranny. I know that the E4OD tranny has the same 31 spline output as the older Ford trucks and that a NP203 will bolt up to it.

I am wondering if anyone has any information on this doubler conversion. I have spoke with Jerry Nichols that sells the NP203 adapter plates for the Toyota 19 Spline split case, and he is not sure if the Ford NP203 has the same bolt pattern for the reduction box as the GM NP203. If they are the same, then I will use the NP203 reduction box adapter to adapt the Ford engine/tranny to my Toyota T-case..

 

[theSherpa]

Does this help?
http://www.high-impact.net/transmission_and_gear/Tcase_NP203.htm

Seems like it should be the same on the back side, which is the side that matters to you...they don't mention any differences besides spline count and tranny-side bolt pattern.

Also, www.wagonermachine.com do a lot with NP203's, and could answer the question.

I posted some pictures of my 203 doubler linkage here:
https://forum.ih8mud.com/showthread.php?t=30485&highlight=np203

Steve