ejsharp, Since youare replacing the B3 reverse bands...it should'nt cost too much more to replace the seals up front too, like the two main seals for the front pump (common leaky area)....mine was not leaking but one of the seals in the front pump was torn. I checked my B2 piston (was updated already with the plactic sleeve) and updated the K1 spring set. All the parts were well under $150 for OEM parts. Straight forward things to check out while the tranny is out.