Swift Front Coil Spring - 5.5" OD x 9.5" Tall - 650 lb. 34012R 2100 CFM on high speed

2100 CFM on high speed / 1500 CFM on low speedDerale has been the leader in performance cooling for decades

and especially suited for use on cars that use rear motor plates

power and mileage

2004-2017 Dodge Durango

Set an rpm limit with two rotary dials in 100 rpm increments

Swift Front Coil Spring - 5.5" OD x 9.5" Tall - 650 lb. 34012R 2100 CFM on high speedDEVELOPED SPECIFICALLY FOR ROUND TRACK RACING. DESIGNED TO HAVE THE OPTIMAL SPRING RATE SWEET SPOT WHERE THE SPRING IS USED ON ACTUAL VEHICLE. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs superior engineering has provided the