Spicer 4260-140 CH transaxle questions

Joined
May 7, 2018
Messages
1,744
Location
Northern KY
The Spicer 4360-140 CH transaxle in my old Craftsman rider is making a whole lot of noise. It dates to 2003 and is a used unit I bought when the original failed. I have two questions:

1) Is a Spicer 4360-127 a direct replacement? I can get a new one at a reasonable price but obviously It’s no bargain if I can’t just swap in in.

2) Everything I can find about these units says they are sealed. What about drilling a small hole in the top of the case and dribbling in some gear oil or maybe tapping it and adding a grease zerk? I figure that some new lube can’t help but extend its life a bit. The 20 year-oil bentonite grease is undoubtedly pretty dried out by now.
 
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