Quote:


The 904 usesa 122 tooth ring gear, the 727 uses a 130 tooth ring gear. The smaller diameter of the 904 ring gear prevents using a 727 flexplate.



Interesting, I'll have to do a test fit with the 42RH I have here.

This could be a problem for me as I was doing a motor swap next month.

Question- Does anyone make interal balanced flexplates for the 904 application with a six bolt crank? I'm amazed B&M does not have one listed!

I'd simply get it rebalanced for a magnum 5.9.