is the design of the suspension arms. The M3 bogie arms have four bolts attaching the sliding pads for the suspension; these are also correct for early M4 bogies. Later M4 bogies adopted a simpler two-bolt attachment, which is what is shown on Tamiya and Hobby Boss bogies. Only the old Bandai Sherman bogies have the early four-bolt layout. The MR M3 bogies have the bolts correct, but the Toro bogies use the later two-bolt type. You can tell by the holes opened up on the suspension arms, which were needed to access the centrally mounted bolts. Dabbing some filler in the holes to close them is the easiest way to disguise the error without any drama. This is why collecting older "obsolete" kits is not a bad idea. I have enough Bandai suspensions to build all the early Shermans I'd ever want to, with the correct bolt layout. That said, that's me. Break out the Elmer's and have a ball with the later stuff.....
