I put a split transfer case in my 65 FJ45, I'm using the rear drive shaft out of an FJ60 for the conversion. I had to change the input flange on the rear Diff to fit the drive shaft, which works fine , but the flange on the transfer case will not take the front flange on the driveshaft. Is there a difference in the bolt pattern on the output flanges on different years of the split case? I need to find one that will work or a different output flange for the transfer case. Hope this is not too confusing. BTW I tried all of the later drive shaft parts I had, no luck. Cheers, Larry