b'XR7 TRACK-WARRIORTorrington Style Needle BearingsPair for Front:oCaged Needle Bearing AssembliesoRide Between Two Stainless Steel Races oGo Under Springs to Completely Eliminate Spring Bind oAllows the Springs to Operate at Their True Rate Throughout TravelShock Canister Roll Bar MountsPair for Front: oClamps the Shock Canisters to 1-3/4 Engine Bay Roll Bars oCNC Machined Billet AluminumBlack Anodized oOne Allen Screw Tightens & Secures the Canister to Roll Bar Optional - Tailored Bump Stop Package: Advanced Bump Stop Set-up Tailored for You by Ron Sutton OptionalCrates Consistent, Confident Braking & Corner Entry Drive it DeepNo Worries. Easily Tunable in Under a Minute Specific Progressive Rate Bump Stops for Soft Landing Shim Assortment & Ron Sutton Track Tuning Guide Included Tech Tip 26A: Bump Stops are often clouded in mystery. In reality, there are a simple tuning tool for corner entry under braking. If you have the right setup, they gently stop the front enddive at your target travel amount. Tuning?If the car is loose on entry under braking & turn in,add more shims. If the car is tight or pushy under braking & turn in, remove shims. Yes, it isthat easy if you have the right bump stop rate curve. Ron will share more tuning tips with you. Tech Tip 17: All suspension springs are not created equal. The spring steel material & the processes utilized in manufacturing the spring, play a big role in the PERFORMANCE of the spring. For decades all production car & race springsleaf & coilwere made with 2000 series steelbasically crapthat responded slow, sagged & lost rate with time & use.Hyperco came out coil springs made with 4000 series steel for Indy Cars back in the 80s. The 4000 series steel is simply a superior steel to the 2000 series. Much more expensive, but it sags less, loses rate less & responds faster than 2000. Today, AFCO, Eibach & others spring manufactures make coil springs from 4000 series steel.Japanese firm Swift makes springs with 5000 series steel that are even better than the all the 4000 series steel springs. Again, a little more money, but better. But the very best springs are made from 9000 series spring steel from Renton & Draco. Amazingly quick response. No sag. Zero. No rate loss. Ever. Renton makes NASCAR springs. No coil-overs. Draco has a full line.In on track tests with data loggers & shock travel sensorscomparing 4000 series springs to Draco 9000 series springswith the exact same rateshave proven to make the suspension respond quicker, create more grip & run faster lap times. Funny thing is, were only talking a little bit more money. Draco coil-over springs are about $40 more than Hyperco, Eibach, AFCO, etc. The more you knowthe faster you can go.199'