Originally posted by K5Chris
[b]hmmmm........ let's see.....
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an LSD never acts like an open. limited slips have clutches with springs forcing the clutches to provide friction between the spider gears. this friction helps spread the torque to both wheels.
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Gotcha
A clutch type of LSD does in fact act like an open diff, the main difference is that when one wheel slips, the clutches will attempt to send power to the "gripping" wheel. There's also different types of LSD's which we won't get into.
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this is correct for a spool, mini spool, and welded spiders (aka lincoln locked), but, there are different types of lockers. automatic lockers such as the detroit act as an open differential until torque is applied, or if one wheel starts spinng significantly faster, then, it will lock both axles together. there is also selectable lockers which will act like an open diff, or an LSD when deactivated, but, will completely lock together when activated. they can be activated via electronics or compressed air.
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Gotcha again
A locker never acts like an open diff, an open diff is able to differentiate power between both wheels, an auto locker is only able to provide power to one wheel or both, nothing in between and it doesn't engage when one wheel spins significantly faster, it engages either when you're going straight and/or as soon as one wheel starts to slip at all, for example, you're making a turn, the outside wheel will disengage but if you gave it enough gas to break traction to the inside wheel, the outside wheel will imediately engage providing equal power to both wheels.