Knowing what I know now, I would have just performed the repair. The only real bad part is that, in my case, pieces of the offending gasket ended up in the recesses of the transmission, however, none got lodged in the valve body though so shifting never really suffered.Originally Posted by Russell
In my case, the frictions and steels of the internal clutches, the bushinges, the seals, everything inside the transmission was in great shape at 140K miles. It didn't need the rebuild, it was fine except for the offending gaskets.