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Accessories
ALUMINUM BUSHING/SET (BK-32)
1973-1987 Chevrolet C-10
Kit includes two aluminum bushings and 2 steel inserts for FACTORY leafspring front spring eye.
If you need replacement bushing for Calvert Springs, please call us directly.
(BK-34 shown)
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Leafsprings
Split Mono Leafsprings/pair -1″ Drop (320-35)
1973-1987 Chevrolet C-10 Truck (52″)*
*Spring measured center eye to center eye along spring arch.
-1″ DROP 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. Parabolic rear half design distributes the main spring pressure point through the length of the half, reducing spring breakage.
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.
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Accessories
HANGER HARDWARE (HW23)
1967-1981 Chevrolet Camaro
1968-1979 Chevrolet Nova
1967-1981 Pontiac Firebird/TransAm
This kit includes new hardware for mounting front hangars in many GM leafspring equipped cars.
Includes two Grade 5 spring eye bolts/nuts, six bolts that mount the hangars to the chassis, along with six J-clips.
(0 reviews) -
Leafsprings
Split Mono Leafsprings/pair 1500 Series Trucks -1″ Drop (330-44)
1988-1998 GMC Sierra 1500
1988-1998 Chevrolet Silverado 1500
1500 SERIES TRUCKS SPLIT MONO LEAFSPRINGS, PER PAIR
-1″ DROP RIDE HEIGHT
Half the weight of factory mono-leafpsrings, Calvert’s parabolic split mono-leaf design is built especially for street or racing ONLY. These springs are not intended for hauling or towing.
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 (7600-300)
1962-1967 F-100 2WD with 3 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.
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. If your axle tube measures 3.25 inches diameter, please see part #7600-325
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CalTracs Rear Mounts
CalTracs Rear Spring Mount (MT-6)
SOLD SEPARATELY
Rear Spring Mount for CalTracs assembly. Designed for Ford Mustangs, double tab.
Made with 5/16″ mild steel to withstand the correct torque on your u-bolts and keep your rear-end from moving. Black gloss powder coated for extra durability.
MOUNT FITS BOTH LEFT AND RIGHT SIDE.
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