I have a L/U slant 6 trans that is electronically controlled from an 87 truck in my 78 right now. Has the low first gear and factory high stall. Nice unit if you can find one.
That surprises me. That is the first electrically controlled LU slant six trans I have heard of. Is there any chance you can get the number off the trans? Thos numbers would be on the edge of the pan rail.