Quote:
Originally Posted by BC_Dan
80-90 will work (most any oil will work) but if you think about it, it's not a gear set... it's a chain and two sprockets. Lots of guys use ATF, I use chaincase lube in mine. Thicker gear oil may not penetrate into the links of the chain as well as a thinner lube. ATF is used in a LOT of chain driven transfer cases in different 4x4 trucks and will be up to the task of lubricating the chain in a chaincase. The thick 80-90 will rob some HP from you when it's really cold outside as well...
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That is very true about the horsepower, and there is a possibility of it not fully lubricating the chain fully in tight clearances.. But, it seems to work, now that I think of it I might switch to Sae 30. Maybe even ATF to get more power
