bolt patterns on the tranny case should be the same if they're the same model trans, thats why they made bellhousings come off, so the same trans will bolt to multiple motors

..... still got that van LOL

 

That's the thing...Are the RAD and the SROD the same case? I have a T/K 5 (4 bolt pattern, clocked about 25 degrees clockwise) and an SROD (4 bolt pattern, not rotated), but no RAD 4 or Rad 4 bellhousing (yet) to work with. I still want to come up with a workable O/D option without resorting to to a T5 (way too much $$ locally)

Finally got the 78 coupe on the road, though. I suspect it may have had some tranny work done by a previous owner...At WOT, it chirps into 2nd at 5900, and hits 3rd at 5500. Tired 2.8, C4, 3.40's, and 185/80R13's. A bit of a dog off the line unless I neutral-drop it, though

 

oh i was confused for a sec, i wouldnt think those two cases are the same. probably need to go with the TK setup or whatever that "mazda" tranny is like the one in my van. its the whole shabang - but i'd still try to score a t-5 if you can find a deal

 

The biggest part of the problem with swapping in a T5 is that the cheapest I've seen one go for locally is about $350 for a stock setup (with the crappy input sleeve, unknown mileage, unknown condition,no shifter, and no warranty)...If its had ANY work done on it, ever, it will go for well over $650 around here. Only way I could even think of doing the T5 is if I bought a write-off and stripped it, but then there's the chance of a damaged unit and the Bylaw Officer (I live IN the city, and between my wife and I we have: three II's, two foxbodies, two Rangers, a camper, and a good sized shed full of parts...

I'm not going to even consider paying more for a used tranny than a used car (got my 78 coupe for $250...)