If you are lucky, you will have access to the top nut on the strut shaft, usually a mm socket. If this is the case, you can reassemble everything without changing your alignment. You can remove the nut and the whole strut assembly will drop out the bottom.
Just remember to capture any spacers or washers specific to your camber plates. If you have an upper strut brace, it needs to come out as well. I was lucky in that I had a couple of spanner wrenches from another coilover kit that fit the strut tube jam nut pretty well, and I was able to remove it without too much fuss. I used a jack handle to add some leverage to the spanner to break the nut loose.
Depending on how long the nut has been in place, it sometimes refuses to come out. Giant adjustable pliers have worked for me in the past, as well as a last-ditch effort, using a torch to heat the top, outer threaded portion of the strut tube, being careful to not put heat on the shaft or seal of the insert itself.
Apply just enough around the perimeter of the tube so the threads will release the nut. Also, a flat punch and a hammer can work the nut loose with some percussive shock therapy. I recommend cutting off the stock lower spring perch because it makes it easier to adjust the new Ground Control lower spring perch. If you look at where the lower spring perch is welded onto the strut tube, you will notice that there is a nice thick weld all the way around the tube.
Just above that welded area is where you want to cut the lower spring perch off the strut. The metal is rather thin, so go easy with the cutoff wheel. I find that scoring the perch all the way around the strut, then making a lighter second pass removing a little more material allows me to strike it firmly with a hammer and the remaining material will tear off cleanly.
This prevents me from cutting into the tube with the cutoff wheel. Once you are happy with the fitment of the new perch mount, you can now paint all the exposed metal to keep it from corroding.
When the paint is dry, install the O-ring to about a quarter-inch from the bottom perch mount. Next, slide the threaded collar with the inside relief cut facing the bottom to slide over the O-ring. This material has been removed, so the collar will fit snug on the O-ring. The adjustable lower spring perch comes installed on the threaded collar, so the front spring can go on with the spring seat already in place. In the kit, zip-tied to the upper spring seat is a washer, which is important because it allows the camber plates to stay fixed while the upper spring seat and rod can turn effortlessly.
If you put the car together and there is binding in the steering, or you hear the spring popping while turning the steering wheel, you likely forgot this washer. Compare it with what came off the car.
From there you can go stab the strut tube back up into the camber plate and set the lower part of the strut back onto the lower ball joint. It will sit there happily while you reassemble the rest of the parts as you removed them earlier. You might need to put a jack under the control arm to lift it into place to finish reinstalling the hardware on the camber plate.
Previous to the release of the Euro Street Series , few options were offered for E30 enthusiasts. The Euro Street Series is based off of the Street-Series coil-over line-up and uses similar specifications and design. Compression and rebound settings are easily adjusted through a single damper adjustment knob which is built-in at the top of the damper mount for easy access. The system requires minor fabrication of the front struts to be installed. In the case of the e, the stock strut housing measures at 51mm.
The coilover brought in has an inner dimention of 45mm. So we quickly adapted some a sleeve to accomodate the new strut. Keep in mind. Once the nut is removed the factory insert can be taken out the top.
Pull the factory insert up through the original strut-mounting hole in the towe r. Drop the new insert into the housing where the original came out of. These AST coil-overs have a combined retaining nut and perch that replaces the factory nut. Install the new upper perch onto the spring and prepare it for installing the upper strut mount.
Install the upper strut mount according to the instructions; in most cases simply by bolting it to the strut tower and tightening the strut mounting nut.
Head to your favorite alignment shop to have the car aligned the way you want. All E30 coil-overs maintain separate springs and shocks in the rear with a threaded adapter for the rear springs. This allows you to raise and lower the rear of the car and adjust corner weights.
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