I just finished splitting my WR400 case in preparation for an Eric-Gorr to-be-installed 426 rod. The crank ships to him Monday. Many thanks to MAD_POTTER and NH_Kevin, and the many others who went there before (via the TT Search function) for their invaluable advise. While the split went fairly smoothly, I'm a little concerned about how I'll be able to pull the crank back thru the left case main bearing. The tool in the book probably cost $$$. Any advice on home made tools? I'm changing the main bearings so I expect an even tighter fit. BTW, why does the right case bearing simply slide off the crank, while the left is pressed? Are the bearings different, or is the diameter of the shaft different on the two ends? I'll be changing out all the bearings while everything is open, so I'm wondering how folks feel about aftermarket bearings? Pro's, cons? Any good links to bearing shops? If I use a propane torch to heat the case up around the bearings, is there any risk of permanently warping the case? Thanks.