Bilstein's old part number on this shock was F4-B46-2148-H0 or F4-B46-2148-H1
TECHNICAL SPECS MATERIAL: 4130
Super Alloy
PREVENTS BOLTS FROM VIBRATING LOOSE
SWAY BAR BRACKETS ARE RAISED ON THE CHASSIS TO CORRECT SWAY BAR ANGLES AND IMPROVE GROUND CLEARANCE ON LOWERED TRUCKS
FULL CONTAINMENT SEAT/COVER,18 DEGREE,14" J-Bars Bilstein's old part number onBRAND NEW KIRKEY 14" WIDE 18 DEGREE LAYBACK, INTERMEDIATE FULL CONTAINMENT RACING SEAT WITH COMPLETE HEAD & SHOULDER KIT & ALL BLACK COVERS (KIRKEY PART #88140KIT). THESE SEATS ARE REGULARLY USED IN DIRT MODIFIEDS, ASPHALT MODIFIEDS, LATE MODELS, STOCK CARS, STREET STOCKS, GRAND NATIONALS, FACTORY STOCKS, PURE STOCKS, AND NUMEROUS OTHER FORMS OF MOTORSPORTS APPLICATIONS. FEATURES: KIRKEYS CONTAINMENT SEAT IS DESIGNED FOR THE SHORT TRACK RACER WHO