The instructions say to remove the clip nuts from the lower a-arm and bolt the coilover's lower mount directly to the a-arm. My a-arms don't have clip nuts, it has nuts which are tack welded to the a-arm. I'd suspect the only way to remove them is to chisel them off. If anyone has already been down this path and has come up with a better method, please let me know.

I haven't installed mine yet but I plan on using a 4" grinder and grinding the whole nut down flush. I'm also going to weld an 1/8" plate to the outside of the control arm where the shock mounts to double the metal thickness in that area and add metal arround the ball joint hole for added strength there also.

I installed mine with the nuts intact ( just drilled out the threads) ...just used longer bolts and washers on each end .... did not want to hack up my stock control arms, alot of pressure on the control arm with not much meat left when you remove the nut was also a consideration for me ...so far so good , FWIW

http://www.chevelles.com/showroom/CDNSS/P1010092.JPG

I have a question about the coil-overs... Can you adjust the height without taking anything apart, or do you have to separate a ball-joint to get the pressure from the spring off it before you can adjust?

They can be adjusted with everything together. Lifting the wheel off the ground is supposed to help greatly. You do need to buy their special adjusting wrenches. I plan to also install their special bearings that go at the base of the springs to make it easier to turn the adjusting nuts.

Definitely buy the bearing and spanner kit ....if they are at their lowest point a bit of a PIA to get wrench on as it interferes with stock lower control arm .....a little easier if you leave the nut on on cause you start that 1/4" higher ....but they adjust fine as long as you pregrease the bearing and apply anti seize on threads ..... I wipe it off after I got to desired height on the area below the spring seat

http://www.chevelles.com/showroom/CDNSS/P1010092.JPG

Rich,

If the nut is on top of the arm I would suggest that you remove it. Grinding would likely be the easiest option. The reason I would remove it is because there is allot of load on that area of the arm now. Allot more than with a conventional spring and shock where the load is spread out over the area of the entire spring bottom. And so I would want as much contact area as possible between the shock mount and the arm. I am thinking about removing mine this winter and double plating that area as Rick mentioned.