Trans Input Shaft Oil Seal Install

Joined
Jan 1, 2011
Messages
196
Location
Tempe, Arizona
Im reinstalling the bearing retainer on my SM420 with a new oil lip seal. Should I lube the seal and shaft with (lithium, synthetic moly) grease or with a light coat of gear oil?

I understand taping the splines is a good practice?

Anything else I should look out for?

Thanks for the hep!

Ron
 
Joined
Jan 1, 2011
Messages
196
Location
Tempe, Arizona
Im reinstalling the bearing retainer on my SM420 with a new oil lip seal. Should I lube the seal and shaft with (lithium, synthetic moly) grease or with a light coat of gear oil?

I understand taping the splines is a good practice?

Anything else I should look out for?

Thanks for the hep!

Ron

Sadly I didn’t get any responses. I came across the following article that said to use an “oil resistant silicon” on a new transfer case seal. Does that mean use an RTV Silicone like a grey RTV?

So again I ask for advice on what is best to use on a new lip seal: Lithium grease, oil or (now) RTV.

I assume the nose itself, where the clutch release bearing collar rides, should have a light coat of grease.
 
Joined
Dec 13, 2012
Messages
1,750
Location
KY
The grease resistant silicon is for the outer edge of the seal to prevent leaks between it and the trans. Just use a good oil or grease on the rubber lips so that it is not a dry seal against the shaft.
 

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