Cadillac STS Forum - 2005 through 2012 Discussion, What to do about Shocks/Struts in Past Cadillac Vehicle Discussion; I just bought my 2005 STS a week ago and I found out after I bought it that the previous ...
I just bought my 2005 STS a week ago and I found out after I bought it that the previous owner replaced the Magnaride shocks/struts with passive ones from Suncore Industries. I really wanted to have the Magnaride and that's really the only thing I'm disappointed about with the car, everything else is in really good shape. I realize that if the car still had the factory shocks/struts on it they'd probably be leaking and needing to be replaced at 130k miles. However, my problem is I will need to replace all 4 connectors for the shocks because whoever replaced the struts cut them all off and installed the resistors to trick the system and I don't know if they did anything else. I don't know what they did to disable the air suspension, the compressor is still there but I don't know if it works. My other problem is I don't know if the Suncore shocks are supposed to have the damping of the Luxury ride suspension or the Sport suspension. If I spend all this money to put Magnaride back on and it rides the same, I will be extremely unhappy. It rides decent now but I would like it firmer, I would leave it in Sport mode at all times. I haven't driven enough of these cars to really feel the difference between the different suspensions.
I also thought I saw a thread in my searching that mentioned using the STS-V shocks but now I can't find it again. I would imagine those would be firmer but I don't know if they'd work right with the "regular" springs in mine since I would imagine the ride height is lower on the V? And by "work right" I mean the taller springs on my car would put the shocks out of their optimal operating range. I also saw somewhere that the shocks for my car only fit 2005-2006 so I don't know if that means the later cars have a different physical geometry and the later shocks won't work or if someone internal in the shocks were changed after 06 resulting in a different part number.
I have thought about that but I would have no idea what kind of shape they would be in. I will probably do more hunting and maybe I could find some low mile ones. I'm going to try and go to a you pull it yard today or tomorrow that has a few escalades and srx's to see if I can get the connectors for the shocks.
I struck out at the junk yard today, the two SRX's they had both had base suspension. There was one 2007 Tahoe that would have had the correct connectors but whoever pulled the engine on it took the connectors with the engine harness. There were a bunch of 03-06 SUVs with Autoride but the older connector didn't look like it would work right. I may call LKQ or somewhere tomorrow and see if they have any low mileage parts but I'm not really sure I'd want to spend money on used shocks. I also figured I'd call the guy at Rippy Cadillac since a lot of people said he had the best prices. I also thought about maybe just putting the STS-V sway-bars on it and just drive it. Maybe do some more down the road. I was also doing some research and it looks like most of the suspension parts are the same from the regular STS to the STS-V so I don't see any reason I couldn't put the V shocks and struts on but I'd probably want to do the springs to match.
I found this in an article on the STS-V from Road & Track:
"The V's suspension layout is basic STS, with double A-arms in front and a self-leveling multilink rear. Front and rear springs, however, are 15 percent stiffer than stock, and the hollow anti-roll bars have grown to 36 mm in front (from 33) and 24 mm rear (from 19). The valving of the Sachs monotube dampers is commensurately firmer, and the V rides 0.4 in. lower in front than a stock STS while retaining the same rear ride height. The bushings of the rear trailing links are stiffer, to better control the heavier mass and inertia of the V's bigger tires and wheels. "