904 race tranny Recipe

I forgot to mention I replaced the parts on the sprague that you can.

1) Rollers, springs and Race with new stock gizmo's. Yes about $5.00

I also agree, the front drum does not need to be replaced with a Billet aluminum or Steel with the 904.
727 Different story.

I was told that the 904's front drum will explode just like the 727 and there was a guy that posted a couple pictures of 1 but it turned out to be a 727……LIAR!! Lol….. I did research for hours and have not found evidence or proof of this at all.