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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by K5thatShmobs, Nov 14, 2002.
Should I put anything besides diff fluid in my 14b w/ a Detroit in it?
I've always used 80-90 weight gear lube in mine. My detroit is still kicking! /forums/images/graemlins/grin.gif
.....so in other words..... NO
Like Tori said, NO. There are no clutches in a detroit so there is no special lubricant needed like a clutch type posi would use.
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