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Originally Posted by Bruno_300TE
That's what I always do... why is it bad?
Bruno
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The differential on an indepenent rear suspension car is mounted with rubber bushings and is designed to withstand twisting/lateral force -- not the upward force of the entire car.
Think of it like this: You have a vertical beam in your basement that's holding up the living room floor. You can invite 50 friends over for a party in the living room, and that beam is gonna hold them just fine. (if each friend weighs an average of 150 lbs, that's 7500 pounds.) But if you go in the basement and hit that beam with a 200 lb blow with a hammer, it's going to knock it out of place, and down comes your living room, with all your friends in it. That beam can handle 7500 lbs if it's coming from above, but it can't handle even a small load like 200 lbs if it's coming from the side. Same principle with your differential.
I don't know if that helps, but don't jack from the differntial -- it's a bad thing. (I do jack my '93 Volvo from the differential though, because it has a solid rear axle.)
Jeff Pierce