(ET) Wheelhorse A-65 Lubrication

[Bfayette aol com]

Another project I am trying to get online is a Wheelhorse A-65 rider.  I 
bought this from a former dealer.  It like new and has never cut grass.  
I'm getting it ready to use this year.  I noticed that the lubricants all 
dried up.  I would like to know ewhat I should do with the tranmission and 
differential.  They are sealed units and ar advertised as permanently 
lubricated.  I took the neutral switch out of the tranmission and there 
does seem to still be some grease in there.  I can't see how to look in 
the diff except to disassemble it. I'm tempted to at least squirt some 
more grease in the tranny.  Both of them look like typical '70s 
manufacturing; not really well made.  Any suggestion on what I should do?  
Thanks.

Brad