Shifter boot rotting prevention

["Michael Knorr" <mhknorr@msn.com>]

A while back, someone on this board recommended a way to prevent shifter 
boots from rotting away due to transmission gear oil splashing on the 
underside of them. It was something like slide a piece of plastic over the 
shift lever down to its base where it enters the transmission. Then install 
the new boot above it. Am I up in the night? Any advice on how to protect my 
umpteenth new boot would be appreciated.

Regards, Michael Knorr
1966 SPL311