b'GN3 TRACK-WARRIORGTR Decoupled 3-Link with Penske Shock & Earnhardt Technologies Air Bump Stops: Decoupled Means We Can Tune the Corner Exit Rear Grip & Corner Entry Rear Grip Separately! The Accel Link Sets Anti-Squat for Acceleration & the Decel Link Sets Pro-Squat for Braking. Decoupled 3-Links are the Highest Grip Rear Suspension Available. Anywhere. Period. But There are Different Methods of Controlling the Travel Each Direction.Our GT Version (Shown Here), Utilizes a Shock Controlled Decel Link with Poly/Rubber Bump Stops. It is a Double Adjustable with Canister from Advanced Racing Suspension Out of Indy. It is a Great Package. Track Proven, Winning Many Events & Championships. The Shock Valving Dampens Movement Both Ways. Our GT Version Utilizes a Canister with Tunable Rate Springs Inside on the Accel Side.SCCA & Trans Am Rules Dont Allow an Extra Shock. Before, We Used a Non-Shock, Poly Bushing Versions Like This. Not as Good as the Shock Version, but They Work Well. The Drawback is the Poly Bushings & Poly/Rubber Bump Stops Wear Out & When They Do, They Split & Pop Out. Not Good. We Had to Change Them Often. Using Multiple Poly Bushings or Bump Stops Together (Shown Here) Spread the Load & Lengthened their Life, But They Still Need to Be Replaced with Maintenance. Recently, Earnhardt Technologies Group (ETG) Developed Air Spring Bump Stops That We Utilize Instead of Poly Bushings or Poly/Rubber Bump Stops. The Air Bump Stops Have a Similar Very Progressive Spring Rate Curve to Them. This is Perfect for Our Needs, As We Want the Initial Movement Quick, Then to Slow Down & Stop Soft.The Earnhardt Technologies Air Bump Stops Have Several Advantages Over the Poly Bushings. #1, They Dont Split & Pop Out!Second, We can Tune the Rate WITHOUT Taking Them Off, by Changing the Air Pressure in Them. The Chart Shown to the Right, Shows Rate Changes with PSI Changes. The Air Bumps Come in 4 Travel Versions from 1/2" to 2. For the GTR Decoupled 3-Link, We Upgraded to a Penske8300DA Shock with Integral Canister & Our Unique Valvingfor This Application. The ETG Air Bump Stops Take the Place of the Poly/Rubber Bump Stops, Upgrading Both CriticalComponents of the Decel Link. We Upgraded the Accel Link Replacing the Spring Loaded Canister with ETGs Pull Barwith 2 Travel. Same Technology & Progressive Spring Rateas the Air Bumps. Now We Can Tune the Rate in Minutes.156'