They SHOULD have 5 discs ? ..... according to who? .... the shop that has done probably more 904 "stuff" than anyone is Paul Forte.

And even in a heavy stock eliminator car ... he used 4 discs.

And I am very much aware the 727 clutch disc is lots larger than the 904.

B U T .. my point was to compare a car trans to a dump-truck trans. The hemi and some six-pack cars had MORE clutches than a motorhome trans?

And I have pulled-apart many MH transmissions with no negative clutch issues at all.