Re: TR4 jacking - watch out!nia.EDU>

[John Cowan <jfcowan@pacbell.net>]

At 01:06 PM 9/5/2000, you wrote:

>  I should mention, that using some very simple
>physics (engineering) the net force on a TR-3 axle at the wheel, is about
>400 lbs, if lifted at the diff.


     The problem is not with the shear force on the axle at the wheel.  It 
is with the shear force and bending moment at the point where the axles 
enter the diff.  With the diff jacked, these forces are four times higher 
than with the car supported by the wheels and tires.
     John Cowan



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