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LeafspringsSplit Mono Leafsprings/pair Stock Height (421-36)
1974 Dodge Charger
1965 Dodge Coronet
1965 Plymouth Belvedere
1974-1975 Plymouth Road Runner
1965 Plymouth Satellite
STOCK HEIGHT SPLIT MONO LEAFSPRINGS, PER PAIR
Tested on the fastest stock suspension cars in the world, Calvert’s Split Mono Leafsprings are designed to control and reduce excessive body separation in rear suspension and plants the rear tires without unloading.
All of Calvert Racing’s Split Mono Leafsprings are assembled to order with grade 8 hardware and heavy-duty alignment clamps. Aluminum bushings are pressed into the front spring eyes and polyurethane bushings in the rear spring eyes, these springs have been proven to withstand over 2,500 HP at ¼ mile ETs in the 6s.
NOTE: Calvert Racing Springs are designed for DRAG RACING and have a higher spring rate / stiffer ride than stock springs. Spring halves are dipped in black paint before assembly, but some raw steel may show due to deburring/grinding sharp edges.
Calvert Split Mono Leafsprings are designed to work with CalTracs to maintain arch. While street driving does not put undue stress on the springs, racing with Calvert springs without a traction device installed may result in bent or de-arched springs.
(0 reviews) -
CalTracs - Trucks
CalTracs Truck (5404)
1994-2002 Dodge Ram 1500 2WD (flipped)
Designed especially for trucks, axle BELOW springs. Bolt On traction system. Full pre-load adjustability, keeps axle from rotating/maintains pinion angle, eliminates spring wrap up, improves 60′ times. Black powder coated. Berlin-style pivot plates for most applications.
Specializing in leaf spring traction systems since 1995, the Calvert Racing Team knows what it takes to get your truck hooking harder than ever whether you’re drag racing, sled pulling or just towing. Helps eliminate wheel hop. Designed by racers for racers, CalTracs boasts unsurpassed quality and craftsmanship; the competition is eliminated right off the starting line. The preload link is made with Chromoly, lightweight but strong, ensuring maximum leverage and minimum flex. HD Rod Ends have a radial static load capacity of over 14,000 pounds. Two-piece aluminum front spring eye bushings assembly keeps the front pivot squared and rigid. The rear mounts are made with 5/16” mild steel to withstand the correct torque on your u-bolts, keeping the rear end from moving.
FULL COLOR INSTALLATION GUIDE INCLUDED.
NOTE: Your final product may vary from photo depending on your application. Some applications require additional hardware.
(0 reviews) -
CalTracs - Trucks
CalTracs Truck (5420)
2003-2009 Dodge Ram 1500 2WD
Designed especially for trucks, axle BELOW springs. Bolt On traction system. Full pre-load adjustability, keeps axle from rotating/maintains pinion angle, eliminates spring wrap up, improves 60′ times. Black powder coated. Berlin-style pivot plates for most applications.
Specializing in leaf spring traction systems since 1995, the Calvert Racing Team knows what it takes to get your truck hooking harder than ever whether you’re drag racing, sled pulling or just towing. Helps eliminate wheel hop. Designed by racers for racers, CalTracs boasts unsurpassed quality and craftsmanship; the competition is eliminated right off the starting line. The preload link is made with Chromoly, lightweight but strong, ensuring maximum leverage and minimum flex. HD Rod Ends have a radial static load capacity of over 14,000 pounds. Two-piece aluminum front spring eye bushings assembly keeps the front pivot squared and rigid. The rear mounts are made with 5/16” mild steel to withstand the correct torque on your u-bolts, keeping the rear end from moving.
This kit requires and INCLUDES a set of square u-bolts.
SQUARE U-BOLTS (spring OVER axle): Calvert Racing’s square u-bolts are 9/16″ ” diameter. We recommend torqueing truck/square u-bolts to 90-100 foot lbs. After running the vehicle down the track a few times, we also recommending checking the u-bolts and readjusting if necessary. Please see FAQ page or CalTracs Installation Guide for more info.
FULL COLOR INSTALLATION GUIDE INCLUDED.
NOTE: Your final product may vary from photo depending on your application. Some applications require additional hardware.
(0 reviews) -
Lifestyle
COFFEE MUG 16oz (LS-MUG 2024)
NEW! 16 OZ COFFEE MUG
Forget Calm. LET’S GO RACING Coffee Mug. Just the right size for a BIG cup of coffee, with a large handle for ease of handling. Deep Royal Blue with white lettering and Calvert Racing logo.
* FOR A LIMITED TIME: Order a 16oz Coffee Mug and ALSO receive one of our new Cooling Cloths at no additional cost! *
(0 reviews) -
CalTracs - Trucks
CalTracs Truck (7620-325)
1973-1979 Ford F-100 2WD with 3.25 inch diameter axle tube.
Designed especially for trucks, axle BELOW springs. Bolt On traction system. Full pre-load adjustability, keeps axle from rotating/maintains pinion angle, eliminates spring wrap up, improves 60′ times. Black powder coated. Berlin-style pivot plates for most applications.
Specializing in leaf spring traction systems since 1995, the Calvert Racing Team knows what it takes to get your truck hooking harder than ever whether you’re drag racing, sled pulling or just towing. Helps eliminate wheel hop. Designed by racers for racers, CalTracs boasts unsurpassed quality and craftsmanship; the competition is eliminated right off the starting line. The preload link is made with Chromoly, lightweight but strong, ensuring maximum leverage and minimum flex. HD Rod Ends have a radial static load capacity of over 14,000 pounds. Two-piece aluminum front spring eye bushings assembly keeps the front pivot squared and rigid. The rear mounts are made with 5/16” mild steel to withstand the correct torque on your u-bolts, keeping the rear end from moving.
This kit requires and INCLUDES a set of square u-bolts.
FULL COLOR INSTALLATION GUIDE INCLUDED.
NOTE: Your final product may vary from photo depending on your application. Some applications require additional hardware. If your axle tube measures 3.00 inches diameter, please see part #7620-300
(0 reviews) -
Accessories
SPRING SHACKLES/set (SHU-300x500A)
Calvert Racing Universal Shackle and Bushing set for vehicles with 1″ Bushing/with Calvert Racing Split Mono Leafsprings
1962 – 1965 Ford Fairlane
This kit includes 1 pair of shackles and a total of 8 polyurethane bushings, 4 for the rear of the spring and 4 for the upper frame above the shackle. These shackles feature a 9/16″ shouldered bolt that necks down to a 3/8″ thread, with the required nuts included.
(0 reviews) -
Accessories
SHACKLE BUSHINGS/kit MOPAR (M20697)
UPPER FRAME RAIL POLY BUSHING KIT (REPLACEMENT)
Fits most MOPAR vehicles. 1″ Outer Diameter, 9/16″ Inner Diameter
Polyurethane shackle bushings ensure your vehicle is free of chassis bind and provides a longer service life in comparison to rubber bushings. This kit does NOT include rear spring eye bushings.
(0 reviews) -
Lifestyle
XL Grey T-Shirt (T-XLG)
NEW! X-LARGE CHARCOAL GREY T-SHIRT
50/50 Cotton/Poly blend for comfort and ease of wear. Silk screened front and back. Machine washable.
Available in sizes M, L, XL, 2XL, 3XL
(T-LG shown)
(0 reviews) -
Lifestyle
L Grey T-Shirt (T-LG)
NEW! LARGE CHARCOAL GREY T-SHIRT
50/50 Cotton/Poly blend for comfort and ease of wear. Silk screened front and back. Machine washable.
Available in sizes M, L, XL, 2XL, 3XL
(T-LG shown)
(0 reviews)
