bellhousing

Howdy there, I am trying to figure out the bolt sizes for my Ranger. It's a 1997 4.0 Manual transmission. The M50D-R1. I'd like to replace the bolts while I got the trans out.

Has anyone seen an M5OD Transmission with only upper bell housing bolt holes? Just picked up what looks to be like an M5ODR1 Transmission (looks identical to the one removed from the 94 Mazda B4000/Ranger I drive). The only difference looked to be the front drive line output shaft. So the 4WD...

I recently replaced my clutch, pressure plate, flywheel, slave cylinder, and pilot bearing. When putting it all back together I noticed several (cooling?) holes on the underside of the bell housing. If I shined a flashlight inside the holes I could literally see the clutch and p pressure plate...