Originally Posted by moparx
too bad you had to helicoil those holes. they should have been a course thread to start with.
if that had happened to me, i would have either helicoiled to a course thread on all the holes, or just drilled and tapped the case to either 5/16-18 or 3/8-16 thread. provided there was enough meat around the thread bosses.
beer


I looked at the specs because I thought the same thing about changing them to 5/16-18 but the drill bit for a 5/16-18 is smaller than the required 8mm hole.

Might be better to helicoil them to 5/16-18 ? I've done that on a trans I know would have the pan on and off a lot.

running up my post count some more .