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Old 06-18-2011, 11:48 PM
Gene K Gene K is offline
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Thats normal. If you have the transfer case that has both a 4 wheel hi and 4 wheel hi lock then the 4 wheel hi allows differentation between the front and rear axles. Lock turns the drive shafts the same speed regardless which can result in binding and possible breakage on hard surfaces. You are supposed to use hi when you are going asphalt to snow and back again constantly. You use lock when you need the extra traction and/or are on a constantly slick surface.

4 Wheel Lo Lock works like Hi Lock except it goes through an extra gear-set (2.72) in the transfer case. Basically its like going from 3.55 gears to 9.66 gears in the axles.

Very few 4wd vehicles come with any kind of limited slip or locking front differentials as this makes the vehicle very hard to steer. Without the outside wheel being able to turn faster than the inside wheel the vehicle will go straight.
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Last edited by Gene K; 06-18-2011 at 11:54 PM.
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