im trying to picture the suspension. what year is this caddy? this is the iron knuckle with the tapped hole for camber at the strut mounting bolt as well as the knuckle mounted abs sensor with the tone ring on the cv....iirc its damn near identical to the 90 toronado trofeo stuff sans the radius arm/LCA portion.
86-92 Toronado, Eldorado, and Riviera are E-body cars with a 108" wheelbase. The Seville is a slightly heavily K-body that also shares the same wheelbase and suspension. The front suspension is very close to (almost identical) to the W- body except in the latter part of this forth generation when the improved strut mounted swaybars were introduced. Toronado's Trofeo had the FE3 handling package. In 92 all Toronado's got the FE3 goodies.
In 92, the Toronado was discontinued and the Eldorado's tenth generation larger body style began but the entire suspension - including 108" wheelbase carried over. That's why the fenders look like caves on the Eldos and why they have room for 10" wide wheels and lowering. In 92, the Seville grew to a 111" wheelbase and added 200 more pounds, but retained the same suspension .... Therefore, if you find an FE3 Seville, you might find some beefy parts for performance. 97 is a cool year for them because it's the last year they shared suspensions with the Eldo and they received the 97 brakes, knuckles, and tubular LCA upgrade.
In 93, the Eldo & Seville rear suspension went from a fiberglass monoleaf IRS to a double wishbone SLA that looks like a cross between C5 Vette and SVT Cobra(minus the axles of course).
Keep in mind that in a nose -heavy FWD, the rear suspension is the most important for cornering because if it can act like the base of a triangle to stabilize the car, then the front wheels have more freedom to do the turning and accelerating.
93 - 02 Eldos are secret Mustang killers on curvy roads and in drag racing even in stock trim... They have been compared to 80's Ferraris... They were designed for great cornering while riding soft. Stiffening the suspension the right way turns them into very trackworthy competitors. But the idea never caught on among performance enthusiasts, so some individuals like me are given too much credit for driving skill when I blow passed WRX's and 300Z's on the flat 4 lane curves in an area known as "the playground".
My car is a 2002 Eldorado ESC. I chose the non electronic suspension so I could tune it easier.
It is the last year of the Eldorado and has all of the upgrades including Aluminum upper rear A-Arms.
Many components of the Deville also interchange giving me some of the Limo and armored car FE7 suspension swap possibilities, like poly bushings that would otherwise not be available.
Handling wise, I am at a point where I must install seats with side wings because my flatter bucket seats won't hold me even with tight belts so I can't drive with two feet when I need to ; I have to use my left foot as a brace to wedge myself back into it so I don't slide around. That's distracting.
