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I have searched the forum but can't seem to find anything on the old 4spd tranny. I have a 4spd in my 85 FXWG. Like to know what oil is good for it. The old manuals say use motor oil but I think the new technology should be better. Thanks
 

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I use Bel-Ray 85W140 in my 4spd trans .. it doesn't leak out as fast as regular motor oil !
 

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I have searched the forum but can't seem to find anything on the old 4spd tranny. I have a 4spd in my 85 FXWG. Like to know what oil is good for it. The old manuals say use motor oil but I think the new technology should be better. Thanks

Red Line Shockproof.
Scott
 
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