CTS ‘weapons' for our Camaro clip cars using 3 link rear suspension. This shock is specially valved for use on top of rear to help dampen deceleration forces caused by release of pull bar spring or bushing. This piece is a threaded body aluminum shock with adjuster sleeve and nut along with a couple of bushings to help keep rear tires loaded on corner entrance. Adjuster nut allows for easy pinion angle setting. This shock is an 8" long version to allow for maximum extension without extending shock all the way. This set up works great with 3 link cars using pull bar and clamped up brakes. CTS has utilized this trick piece on their cars since 2008 with great success. If you want better corner entrance stability and better rear tire grip on your 3 link car. Versions also available for cars that rules don’t allow top shock.