OK, I should've mentioned this was a standard tranny application. I know many of us use the terms interchangeably (sort of like 304 and 360 stuff!) however, I always call a standard tranny a flywheel and an auto a Flexplate. My understanding is that there is only one part number for a 304/360 crank and I assumed that the balance would be the same for them, though I guess the rotating mass is different due to the pistons. I had always heard that the part numbers are also the same for the 304/360 flexplates and flywheels... is that incorrect? Thanks, Jesse Date: Sat, 03 Jun 2006 22:11:30 -0700 From: "Jim Blair" <carnuck@xxxxxxxxxxx> A: SOme people with Jeeps have used the 304 and 360 flexplates interchangeably (I always found vibration) The 304 has slightly less offset weight than the 360. I went through this with my '73 J4000 when I swapped a 304 for the dead 360. WHich trans are you running? The universal with adapter ring? New flexplates are still available (I still have my old one from the '73. I was going to cut the weighted portion from it to find out how much the 360 needed but never got around to it. The teeth were nearly chewed off in one spot) __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com