On Sun, 29 Jun 1997, Jerry Causey wrote:
> I rebuilt the rear leaf springs on my '67 MGB GT a couple of years ago, and
>in
> the process, modified the rear geometry, a la Fred Puhn (How to Make Your Car
> Handle). They are de-arched, with extended rear hangers, and Koni tube
>dampers.
> This left the rear sitting a bit over 1 inch high. I just recently bought and
> installed a set of 1.25 inch lowering blocks which levelled the rear of the
>car
> perfectly, but introduced a very unsettling movement of the rear end. When I
> suddenly let off, or jump back on, the throttle the rear end twitches (to one
> side off, other side on). Nothing appears to be loose or incorrectly
>installed.
> Could this be due to the change in pinon angle caused by the lowering blocks,
> and will shimming one end of the blocks to restore the original angle
>eliminate
> the twitch? Any other suggestions for a cure?
>
I suggest you tighten up the U bolts that hold the rear axle to the springs.
W. R. Gibbons Dept. of Molecular Physiology & Biophysics
Univ. of Vermont College of Medicine, Burlington, VT
gibbons@northpole.med.uvm.edu (802) 656-8629
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