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I've got good news and bad news for you. First, the good news: as far as I can tell, the front FX-3 actuators for 89-96 Corvettes remain available under GM #22068666. This is also the original part number used in 1992.
Now, the bad news: the GM list price for this piece is currently $594.50.
i am not up on C-4s but i would just change all 4 shocks to a standard type. i bet that the electronic program can be removed from the computer by a TECH 2
hell then you still should be gainfully employed and flush with cash. it's us old retired guys living on a fixed income that have to worry about the next meal
Also, that's one of the reasons that I did not order FX3 with my 92. Actually, I was never interested in FX3, itself. However, I was interested in RPO ZO7. That option, which included FX3 and the same shocks as the "standard" FX3, also provided heavy duty springs, suspension bushings, and J-55 heavy duty brakes. The J-55 HD brakes were all that I was after, but I couldn't get the car built with them (I tried mightily) without the whole ZO7 package.
With ZO7, I was concerned about the huge replacement cost for the wear components of the FX3 system (primarily actuators and shocks). Also, I was concerned about the possible effect of the HD springs on body integrity over the long haul and ride comfort. The "standard" suspension in a 92 is jarring enough. Since there were no ZO7-equipped "demonstrators" to test drive (dealers would never order this option for inventory cars), I didn't want to take the chance. Plus, as I say, there was still the issue of the replacement parts cost (I wonder how many folks that ordered FX3 or ZO7 knew about that when they placed their order?).
Anyway, even before I ordered the car I did some parts research and discovered that it was quite easy to convert from the standard JL9 brakes to J55. All that had to be changed was front calipers, rotors, caliper brackets, and caliper pins. That's it. The rest of the system was exactly the same as JL9. So, awhile after I got the car, I purchased all of the parts I needed. I said to myself that when I did the first brake job on the car, I'd install them. But, that hasn't been needed yet (the pads are not even close to requiring replacement) so the parts languish in my "92 parts collection" [none for sale]. I will install them someday, though.
Another interesting part of the ZO7 package relates to the bushings. As you and others may know, the rubber suspension bushings for C4s were never and are not now available seperately from GM. In order to get them, you have to buy the whole control arm or rod assembly as they are vulcanized in-place. They may be available seperately in the aftermarket, but they're tough to install.
Anyway, the ZO7 suspension pieces (with HD bushings) or the HD bushings seperately are not now nor ever were available from GM in SERVICE. So, if a ZO7 owner needs to replace any of these, they have to do it with standard suspension pieces or use aftermarket bushings of some sort. I knew that before I ordered the car, too.
Yes, the actuators and shocks can be purchased for less through non-GM parts channels. However, even at Corvette Central's prices, a car-set of actuators and shocks will cost over $1,500. And, when I originally ordered my 92, these things were not available though aftermarket sources and there was no reason to believe that they ever would be.
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