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Old 08-11-2018, 02:44 PM   #29
mh_merc
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Default Re: ‘39 Merc All Terrain Vehicle???

Quote:
Originally Posted by rotorwrench View Post
From what I understand, the transfer case has an early version compensator drive unit that allows the front axle to slip free of the drive system. More modern set ups are like a differential to a certain degree but those set ups were more like a detroit locker by comparison. When you turn sharply while it's shifted into compensating drive, it starts slipping like a rachet does. It makes a noise that sort of sounds that way but it allows one unit to rotate at a different rpm than the other. As long as you drive relatively straight, it makes no noise. They may have made noise but they did function OK.
I can't comment on the driving characteristics in COMPENSATING DRIVE; it was apparently removed from my t-case to prevent wear (it did bind, skip and complain in POSITIVE DRIVE the one time I tested it on dry pavement). Here's how M-H explained it:
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