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AccessoriesU-Bolts, Square/set, 2.5″x11.5″ (SQ250x1150)
SET OF FOUR SQUARE U-BOLTS w/hardware
2.5″ axle diameter x 11.5″ long, axle BELOW springs.
Square U-bolts, Grade 5 material, zinc plated, 9/16″ diameter. Set includes 4 U-bolts, plates, nuts and washers.
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 FEQ page or CalTracs Installation Guide for more info.
(SQ300x900 shown)
(0 reviews) -
Leafsprings
Split Mono Leafsprings/pair (422-37-E)
1970-1974 Dodge Challenger
1970-1974 Plymouth Barracuda
+1″ 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.
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.
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.
(0 reviews) -
Leafsprings
Split Mono Leafsprings/pair (220-36)
1962-1967 Chevrolet Chevy II*
1962-1967 Chevrolet Nova*
PRICE PER PAIR, SPLIT MONO LEAFSPRINGS
*If you have the original perches installed, you will need our Space Adapter Plates: SP-1 (multi springs) or SP-3 (mono springs). Please see Parts & Accessories page to order
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 (3310)
1990-1993 Chevrolet Silverado C1500 454 SS
1988-1998 Chevrolet Silverado C2500/C3500
1988-1998 GMC Sierra C2500/C3500
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 (7300)
2009-2014 Ford Raptor
2009-2014 Ford F-150
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.
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.
(0 reviews) -
CalTracs - Trucks
CalTracs Truck (5400)
1994-2002 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) -
CalTracs Links
CalTracs Force transfer Links/pair- 27.5″ (L250-275-310)
SET OF TWO
1.25″ diameter x 27.5″ force transfer links. Measure end to end. Can be lengthened 3/4″ each end by turning once installed.
Made with 4130 Chromoly, the CalTracs preload link is light weight but strong, ensuring maximum leverage and minimum flex. Gloss black powder coated for added durability.
(0 reviews) -
CalTracs Links
CalTracs Force transfer Links/pair- 20.5″ (L180-205-240)
SET OF TWO
1.25″ diameter x 20.5″ force transfer links. Measure end to end. Can be lengthened 3/4″ each end by turning once installed.
Made with 4130 Chromoly, the CalTracs preload link is light weight but strong, ensuring maximum leverage and minimum flex. Gloss black powder coated for added durability.
(0 reviews) -
CalTracs - Standard
CalTracs Standard (6800)
THIS KIT INCLUDES 2-HOLE PIVOT PLATES.
Built for:
1967-1973 Mercury Cougar
Rod Ends/Heim Joints NOW COME WITH GREASE ZERKS. Add a small amount of grease to reduce chatter.
Designed by Race legend John Calvert. Bolt On traction system. Full pre-load adjustability, keeps axle from rotating/maintains pinion angle, improves 60′ times. Black powder coated for durability. Standard and Low Pro pivot plates available.
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Specializing in leaf spring traction systems since 1995, the Calvert Racing Team knows what it takes to get your car hooking harder than ever. 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. ¾” 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.
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NOTE: Your final product may vary from photo depending on your application. Some applications require additional hardware. U-bolts NOT included in the kit but are available if desired.FULL COLOR INSTALLATION GUIDE INCLUDED.
(0 reviews)
