Hate to use the "Finally got around to" line, but I just got the crappy scatter shield conversion bellhousing replaced with the AA unit I've had for more than a year. It was fairly straight forward, but had a few surprises for me. The new bellhousing (AA) was about 3/8" thicker from mounting surface to surface. What I didn't realize when I ordered the AA pilot bearing (#716154) was that it is "extended", and sticks out of the SBC crank by about....you guessed it, 3/8". I also ordered a new pivot ball (#716180) at the same time, and it was about 3/16" shorter than the one coming out. It didn't have a tapped hole in it for a bolt like the old one, but threads protruding, so I had to drill and tap the housing to make it work. I first thought I would have to put a spacer (washer(s)) behind the ball to make up for the different length, but when I test fit everything, it couldn't have been any more perfect. Not only did I not have to shorten the push rod (as per the AA instructions), I didn't even need to adjust it from when I removed it. The slave cyl is now mounted so it is in better alignment with the throwout fork, the pedal play is perfect, and it's like butter. It even has better throw now. The cool thing is that the clutch only had a couple thousand miles on it and didn't need replacing, so it's "apples to apples", and not just new parts feeling tighter.
I did have to modify the AA "propeller" crossmember (sorry, I didn't get pictures) to accommodate the extra thickness of the new bellhousing. I used some 2"x3/8" flat bar (same thickness as the crossmember) to allow me to move the TC back. It also allowed me to push the TC a bit higher in the tunnel and flatten the belly some. As a bonus, lifting the TC also tilted the motor up, and moved it away from the firewall by about 1/2", something that I needed to do anyway. Oh yeah, I also found the backup light wiring tucked into the frame. Woohoo, backup lights! Never had them before...
I did this over the course of about a week, and couldn't be happier with the outcome. Wish I would have done it sooner, but I think the extra research here on MUD (and head scratching) payed off in spades.
Next up, fab a tailgate out of the '82 mini truck gate I just got, and ramsheads with exhaust inside the frame rails. Not necessarily in that order.
lefty b