I always jacked up the fronts wheels on my '89 under where you say.
Never had any problem. Better than putting more dents in the thin
sheet metal where the book says to put the jack. The rear is easy with
the big rear axle shafts..
On Sun, 18 Nov 2007 14:12:23 GMT, Backyard Mechanic
It's all in concentrated point loading on "thin" sheetmetal, and
even an A-Arm rim is thin in comparison to a frame rail. The spring
perch is flat and you spread the load out some, but the "rim" of the
jack pad could still muss it up cosmetically.
You have to be careful about the pad being unstable and the car
falling off, but you can always make a pad for the floor jack out of
wood, folded carpeting or cut-up tire treads to spread the loads -
make a slot for the pinchweld to sit in, and put the load across many
square inches of the flat unibody "frame elements". Then you can pick
it up at the pinchweld jacking spot with no body damage.
If you want to do a bit of welding & fab work, you could make a
replacement floor jack load pad out of a square of 1/2" steel plate
and a chunk of round rod to fit the jack arm hole, with a couple of
rectangular rubber dock bumpers bolted on facing up. Nice and stable,
and a convenient slot between the bumpers...
Sometimes the best tools are the ones you make yourself. ;-)
--<< Bruce >>--
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