Alright. You've given me quite a bit to think about.
Aren't the R154 and AX15 the same transmission?
AX15s are plentiful at my local U-Pull it
Is that the 3 or 4 speed bell housing you used in those pictures?
R154 and AX15 are from the same family of transmissions and they both have the same bolt pattern for the bellhousing. Big difference between the two is gear ratios, the R154 is geared for a sports car (MK3 Supra Turbo) while the AX15 is for a truck. Pretty sure the input shaft is different between the two, and not sure about the shifter location.
I know that someone on here has done an AX15 swap with a V8, might give you some useful info.
