Charlie, No need for a new gasket. Wipe it down with wrag and reassemble. After repeated shift issues, a new set of bolts are in order.
I did that page in 2004 while I lived in NC, and haven't touched it since, now living for last 7 years in VA. Some of the parts I stated I was having problems getting then are as common as corn and cheap as dirt now on the internet.
I just bought another Super Dexta, that I pick up next week. Haven't even picked it up and I ordered a new starter, and will replace the TACH and TEMP gage. That is now a standard modification for me, another is to rewire the regulator for negative ground. I always replace the seats with a suspension seat with arms. I always add a remote, too.
Looking for a tap to change the fuel heater over to the MF/Ford 1000 series all in one glow plug assembly.
Darn handy little tractors on my farm.