Quote:
Originally Posted by ChevyC102007
I have that dang thing on my TRANSMISSION and the trucks only a 2 wheel drive 
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All I've figured out so far is it isn't really for just the four wheel drive it was either to make the ratio adjustment easier ..cause it was off board. Or someone changed the gear ratios so much they had to put this on the outside to change it.
Quote:
Originally Posted by 68gmsee
I think that's what I would do.
I've measured it with my wife going behind me on gravel road (  but no license plates yet) and at first it was off 15mph. I put a different gear in and now it's app. 5mph.
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Ha I'm fixin to change the tire size too so I guess it won't matter. Alot of the threads I saw last night said a speedo shop could adjust the gears in it.