Thread: Project Sebring GT Spyder

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After repairing the upper shock mounts, I needed lower mounts to match. These didn’t pose the problem that the uppers did, since I hadn’t built them yet. That was a stroke of luck since they had to be farther back to match the uppers.

Because they had to be so far behind the axle, mounting them in double shear would have taken a lot of bracing. I decided to mount these in single shear and just build them heavy enough to take the load.

The mounts wrap around and bolt to the lower link brackets. The main 5/8” bolts that hold the links also go through the shock mounts. This way as long as the links are attached, the shock mounts are too. A couple of 3/8” grade 8 bolts also go through the rear to stabilize them and allow moving the link position without the mounts coming off.

The mounts themselves are machined from solid bar with a 5/8” threads. I’m using a bolt right now but may swap over to a stud for maximum thread support. I counterbored the threads so that the weight will be supported by the full diameter of the unthreaded portion of the bolt and not just flexing on the root of the threads.
The mounts are a little longer than I wanted, but that’s the way it goes sometimes.

The shocks are gas filled parts by Ride Tech with a little over 6” of travel. The gas charge is why they are able to be mounted upside down. This reduces unsprung weight a little and allows easier access to the rebound adjustment. It would be very difficult to reach if they were mounted the other way.


The shortened tap is what you do on a Sunday afternoon when you don’t have a bottoming tap, but you have two taper taps.

Originally Posted by Hotrod46

The shortened tap is what you do on a Sunday afternoon when you don’t have a bottoming tap, but you have two taper taps.

I do it because I'm cheap and can, been doing for so long I now have a whole set of bottom taps. LOL!