Your Alfa spider only weighed 1800/2100 pounds.
I've used them before but only to unload a car.
Back in the early sixties I sold all kinds of Spring Boosters to drag
racers and the spring risers that come in sets of six with gradual steps
seem to work best, I can't remember the manufacturers name though. We
used three in each spring with the shortest on the bottom then progressed
to the tallest as they progressed around the bottom coil. They stayed in
place and didn't make the ride stiff.
It is my understanding that Delco Air Lift Shocks from a Chevy Astro Van
will fit the rear of Vanagons and Westies with the use of a longer top
mounting bolt. Can't prove it, never done it.

Stan Wilder
83 Air Cooled Westfalia still leaning.

On Mon, 7 Jan 2002 08:49:08 -0800 Mike Garske <mjgarske@ATTBI.COM>
writes:
> I used them for 2 years on my Alfa spider with no problems.  If they
> ruined the springs I didn't care to much as they were replaced as
> soon
> as I had the dough.
>
>                                                                 Mike
> G.
>
>
> >
> > They ruin your springs after a few thousand miles if they don't
> fall out
> > first.
> >
> > Stan Wilder
> >
> > On Mon, 7 Jan 2002 07:09:53 -0800 s w <smorewhisky@YAHOO.COM>
> writes:
> > > i was wandering around an autozone the other nite and
> > > happened across somthing that caught my eye, i think
> > > they were called spring boosters, looked like big
> > > hunks of iron to me. anyway, they go in the springs
> > > and i would think they could level my sagging vans
> > > rear end. they were only five bucks and i almost got
> > > them, but figured i would save the dinero for now and
> > > ask the list if anyone had ever used or tried these
> > > things before?????
> > >
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