Optimized for those Ram 1500's with a constant load, these “HD” rear springs accommodate contractors and overlanders alike. These springs will operate exactly as Carli's standard multi-rate springs when laden with 500lb. constant bed-load. Detrimental to the performance and stance of our standard multi-rate coils, Racks & Rooftop tents, Camper shells and bedslides, contractor tool boxes, etc. are no longer and issue with our HD rear springs!

VEHICLE FITMENT: 

• 2009-2018 Ram 1500 4×4

KEY FEATURES:

• Provide 1/4″-1/2″ Rear Lift
• Requires 500lbs Constant Load!
• Progressive Rate

TECH INFO:

To be clear, these are NOT coils for guys who occasionally tow or sometimes throw a thousand pounds in the bed as they DO have a higher spring rate to accommodate load. This will cause a higher rear stance and stiffer ride when unloaded