Join Date: Apr 2009
Location: Benton Harbor, MI
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What year range wagon are you looking at?
For the 91-96(the only years I really know), they only had one suspension code. They had the stiffer springs front and rear. the rears were adjusted to compensate for the added weight in the back. Using the stock Impala SS springs up front will only accomplish lowering it. The spring rate is very similar, if not the same. SS springs in the rear is really going to drop the rear, and cut down on how much you can put back there. You can gain some of this back, by putting Air Lift 1000 air bags inside the springs. My wagon sits pretty low in the back as it is, with the air shocks not functioning.
But really, even the SS front springs were not stiff enough to match the stiff springs in the rear of a sedan. The front of my sedans with the stiff springs, feel floaty compared to the stock rear. I'm sure a wagon was very similar. I have not driven mine much, and the shocks are beyond toast. The front springs are about a 440lbs/in rate. I have been looking in to the options of 750lbs/in front springs without dropping it much from where it sits. Probably higher than the 95/96 SS in the front. I have 94 SS springs in my 95 Roadmaster Sedan, and it's low enough for me. The 94 SS sat higher in the front than the 95/96 SS.
The front sway bar on a wagon is the small front bar. It's a straight forward sway to put on the large front bar from an SS, 9C1, or towing package sedan. Sometimes the screws strip out the frame, but there are a couple solutions to that. The rear, is not as straight forward. The GM sedan bar will not bolt up in the stock location. The rear LCA's on a wagon are about 2" farther apart. You have to either make adapter plates, use after market boxed arms and slide the bar forward(arms are angled, so this will work). Or, and this is the best option to me, get a rear bar from a Crown Vic, Grand Marquis, Town Car. I pulled a 21mm rear bar from a 92 Crown Vic with the handling package. This bar took me two years to find in the self serve yards I frequent. Most of them are 17mm on the crown vics(even police), and 19mm on town cars. It mounts to the axle housing, then has the links that go to the frame. The rear section of the GM wagons, and the ford Sedans is very very similar.
~Cory Magner "My name is Cory, and I'm an addict."
95 DCM Buick RMS 14.21 @ 91.79 "Jesus" Blown Engine at 85k
95 DCM Buick RMS 13.52 @ 99.33 "The Doctor" Blown Engine at 180k
96 DGGM Buick RMW. 263k, still on the factory tranny.
And 5 other LT1 powered land yachts Is there Rehab for this Sh*t?
Last edited by MrBuick (Magnum); 02-03-2012 at 11:48 AM.