Lawrence, the parts I bought were a ball (pn 1377746)and gasket kit(pn 271292). The manual is # TP 31642/1. The manual is for AW70/70L,AW71/71L, and AW72L. The L means lockup, check the tag on the tranny before you buy your gasket kit. This job has the potential of going very wrong. I tried the wrong way first. I disassembled enthusiastically and lost one ball of about 15, dropped a retaining pin and then wasted 2 hours scratching my head and agonising about the lost ball. A friend had a dead AW71 and let me take it apart for reference. This time I followed the manual and compared the two valve bodies. The job was dead simple once I went about it the right way. GET THE MANUAL and follow the steps that get you to opening the valve body up. The manual says nothing about the balls so you need to locate them and note ON PAPER where they go. There are a lot of balls and things that can go flying and falling into your parts cleaner. Following the steps in the manual however, takes away that risk. Kerry gave me an address that shows the bad ball. www.geocities.com/MotorCity/Downs/9645/AW71.html

As in the photo on that page, my ball was worn to half the size of the new one and was blown out from its seat and had gone somwhere else.

I think I replaced about 5 maybe 6 quarts of fluid (I use only AMSOIL).

Make sure you have a lot of good quality paper towel (cloth fibre won't break down should it get into the gubbins) for the job and a large clean well lit bench surface.