I installed my new GR2's today and had no issues with the front. The rear is a different story. For the rear, I added the Ben's Strut Mounts as well. Yipeeee for more rear travel! However, there's fitment issues because of the Ground Control upper spring mount plus the new strut mounts. It's thickness plus the thickness that the new strut mount added due its flatness instead of the cup shape that conforms with the upper spring rubber, made it impossible to bolt on the top nut that holds everything together with the rear strut. (see photo below)



In order to accomodate things, I switched a few things around. Everything fits now however, I'm not too sure if there's going to be bad side effect as a result of this. BTW, the rear strut boots didn't fit inside the GC springs because of the diameter of the coils. It's too narrow for the rear boot so I had to leave out the rear boot. So this is what I did, I installed everything in this order:
1) GC upper spring mount
2) Upper spring seat rubber (for stock springs)
3) Left out the strut boot cover and added a washer
4) Bushing
5) Ben's rear mount
6) Bushing
7) Washer
8) Locking nut

The only thing I'm worried about is the way the upper spring seat rubber will sit against the new strut mount especially when the weight of the car is applied to it once the strut is reinstalled back on the car. The new rear strut mount is flat, the upper spring seat rubber isn't so I'm worried about this part. Here's a pic of how it looks like now:


I need some suggestions from all the suspension gurus. Is there anything I could have done better? Perhaps leave out the upper spring seat rubber for the stock spring since I'm not using the stock springs anymore. Any help will be very much appreciated.

 

Adjust the coil over until the spring is seated on the upper mount. Don't leave the excess play that shows in the pic. If the spring ever unloads completely while your driving it could shift out of position very easily.

It looks like you have the GC spring seat sitting on the metal washer that sits on the nub of the shock. (where the large ribbed bushing was) If thats the case, thats no good. You must isolate the shock piston mount points, lower nub & disk washer where the ribbed bushing is in the upper pic & upper mount with bushings. The whole spring and GC upper mounts must sit sandwiched between two bushings. As long as you've got it configured that way, you'll be ok.

 

Thanks for the suggestions. I understand what you mean about adjusting the collar til the upper part of the spring touches the gc spring seat however, if I do it that way, the rear of the car would sit to high up. Also, as you suggested as well, I tried having the washers and bushings situated that way. However, as you can see from the first photo below, there's just too many pieces to fit in between if I have the disk washer and ribbed bushing sitting on the lower nub first. As described on the upper photo, there's no more room for the upper bushing, washer, and locking nut. I saw this write up made by a member who has the same setup. Do you think this will be ok?

 

Ok so I took down my rear struts this morning and did something similar to 95CustomMaxima's. The end result is awesome! I don't have rear suspension noise anymore. I took the car to the freeway and the ride is well improved. My car seems to be more stable now at higher speeds. Steering wheel shimmy have completely disappeared.

The rear end feels so different from before when hitting freeway dips at high speeds. I can feel the improved rear suspension travel. I'm very happy that I got Ben's rear strut mount.

This is how my rear struts are setup now:

1) No need for the OEM spring seat rubber since I'm using Ground Controls.


2) The disk washer and ribbed bushing is resting below the GC spring seat.


3) Before the new strut mounts, the coil over adjustment collar was set all the way down on the threaded body to achieve the lowered stance. Notice now how it is, and I have great suspension travel.


Next........wheel alignment.

Sorry for the blurry photos, I used my friend's SideKick to take the photos.

 

That looks perfect. Nice job.