Some info on my Specific Ground-Control Coilover setup:
500lb springs up front, 400lb springs in the rear.
Koni Single Adjustable Dampers
Front GC Camber/Caster Plates
Custom GC Shock Housings on all 4

So one problem out of the way and now another. The bolt holding the top-hat on was a 19mm bolt which would just barely fit through the hole on the top-hat, but none of my sockets, not even my thin-wall sockets, could fit in the top-hat hole to tighten down the bolt. So I ran to the hardware store, and found a perfect size metal dowel to use so the bolt would sit above the top-hat hole. (see pic below)
After cutting off the bracket, it now will nicely fit on the upper spring perch.

And now for the rears which were a bit more of a PITA. I did order the rear camber plates and because of that, I was forced to re-use the stock upper hats. You can achieve a bit over -1 degree of rear camber with just factory adjustment and that should almost be enough for most street/track cars.

Alright, so the only real problem I ran into with the rears is fitting the stock top-hat onto the GC coilovers. I was told it should be a simple unbolt and bolt on sorta thing, but it wasn’t. Some cutting was involved. As you can see in the pictures, there is a metal bracket for the OEM dust boot which needs to be cut off.

So one problem out of the way and now another. The bolt holding the top-hat on was a 19mm bolt which would just barely fit through the hole on the top-hat, but none of my sockets, not even my thin-wall sockets, could fit in the top-hat hole to tighten down the bolt. So I ran to the hardware store, and found a perfect size metal dowel to use so the bolt would sit above the top-hat hole. (see pic below)

Questions, comments, E-Mail me:

andy @ northsidecomputers . net (take out the spaces)