Probably a stupid question, but why don't you recommend machining the pressure plate? I see some trans shops offering thinned/machined 727 pressure plates. Or is it only a 904 thing?
We offer machined pressure plates to thinner thicknesses, but not stepped. I've removed several broken stepped pressure plates.
We offer this mainly for the 727 and RE/RH transmissions when installing more than 6 friction discs. I am more inclined to use a thinner snap ring or machine the apply piston a small amount on the 904.
