A friend of mine and I rebuilt my A4LD in my old Bronco II, it was the best part of the truck after that, I used the transgo kit and drilled out the holes to the hardest shift level, I was very happy except I messed up the Low/reverse piston seal, use a factory original from ford instead of the cheapy that came with my seal/gasket kit. Also, while you are that deep in the transmission, I reccommend changing the OD lockup solenoid as you have to drop the shift body to change it. It's fifty bucks or so at the dealer, but to me it's just insurance. BTW I put 40K miles on my rebuild (rebuilt it because it threw out a thrust washer.), and I saw the thing on the road the other day. I used a rebuilt pump, rebuilt Torque converter, all new bands, clutches, etc. Where I see people having trouble rebuilding this tranny is trying to go too cheap. I talked to three or four professional tranny rebuilders, they all told me if I wanted my tranny to last, replace those things. Good Luck, with proper study and a little hard work, you can build a A4LD that will last.
PS, I went back to a 5 speed when I sold the bronco II and got the Ex! I'd rather deal with clutches and synchros
PPS, we did have the ATSG book, it's an absolute nescessity for installing the springs, and rebuilding the tranny in general. I'm about to embark on rebuilding my M5r51 now, synchros are getting worn after only 192K miles, imagine that!
