I'm going to take a guess here Stonewall.......It looks like this machine is set up with split shifters, like you are doing on your Hustler. Every T-20 case is the same with those holes on both the top and bottom sides of the case, regardless of left or right side so they didn't have to have two different molds. They just bore out either the upper shifter holes or the lower shifter holes to for the T-20 case to be either the right or left side. They probably mounted the diamond shifters in this machine on the bottom side of the T-20 because of clearance issues.
~EDIT~ Never mind, Mr. Gerber beat me to it, haha.
"Looks like you have a problem with your 4 wheeler........you're missin' two wheels there"
1983 Hustler 945-HK 627cc Vanguard
1982 GMC K-10 Sierra Classic Suburban 6.2 Diesel
2010 Chevy Silverado 1500
1974 Honda ATC 70
1986 Honda ATC 250ES Big Red
There is no Z in Diesel!!
"Looks like you have a problem with your 4 wheeler........you're missin' two wheels there"
It was probably reversed electrically so that T-20 may be a little different. The motor is an explosion proof type also due to gases in the mines. It also does not have a CVT set of clutches. Since electrical motors do not depend on RPM for torque they are not needed. Again these are my thoughts on the design.
Very cool pictures and i wounder if any of them have survived the years?