Air Lift Loadlifter 5000 Ultimate Rear Air Spring Kit for 73-86 Chevrolet C10 Pick UpLoadLifter 5000 ULTIMATE adjustable air spring kits feature all of the benefits of our heaviest rated air spring with the addition of an internal jounce bumper inside the spring for the ultimate in ride comfort. An Air Lift exclusive product! Fits vehicles with in bed hitches. Tow and haul the heaviest loads with safety and comfort with LoadLifter 5000 ULTIMATE. Works with vehicle's leaf springs to provide up to 5,000 lbs. of front load leveling

you can buy with confidence under AIRAID's "No-Hassle" Lifetime Limited Warranty

rich/lean safeties

75 in Collector - Steel - Metallic Ceramic - Mopar Gen III Hemi - Chrysler 300C 2005-08 / Dodge Challenger 2008 / Dodge Charger 2005-08 - Pair

340 Dual Fuel Pump

Ultra-High Flow EFI Regulator

660" Dual Spring Kit w/ PAC Racing Polished Springs

EngineTech C4

bolt-on performance

gear ratios and more

Big Block V8 348-409

The 7521 includes nitrous bosses but no provision for exhaust heated chokes and no exhaust crossover

Included jetting for 100