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LeafspringsSplit Mono Leafsprings/pair Stock Height (670-35)
1971-1980 Ford Pinto
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.
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CalTracs - Trucks
CalTracs Truck (7500)
2008-2015 Ford F-250 2WD Diesel
2008-2015 Ford F-350 2WD Diesel
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.
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CalTracs Links
CalTracs Force transfer Links/pair- 32″ (L295-320-355)
SET OF TWO
1.25″ diameter x 32″ 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.
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CalTracs - Standard
CalTracs Standard Low Pro (4241)
THIS KIT INCLUDES LOW PROFILE (1 Hole) PIVOT PLATES.
Low Profile allows approx. 1.5″ more ground clearance for vehicles used for every day street driving.
1976-1980 Dodge Aspen
1976-1980 Plymouth Volare
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: Part #2301 shown. 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.
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CalTracs - Standard
CalTracs Standard (6200)
THIS KIT INCLUDES 2-HOLE PIVOT PLATES.
Built for:
1960-1962 Ford Galaxie
NOTE: Hanger modification required. See graphic for basic instructions. Photos of actual install/modification, click HERE. Call 661-728-9600 during regular business hours if you have questions.
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.
.
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) -
CR Series 9 Way Adjustable SHocks
HR Series Rear Shocks/pair (HR22142)
Collapsed Length: 14-1/4″, Extended Length: 22-1/8″, Approx. Ride Height: 16.25″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Calvert Racing’s HR Series 9-Way Adjustable Rear Shocks twin tube design has what you need for all around best performance and maximum consistency. The dampeners allow you to control rear body separation through an external dial to keep the tires planted.
Constructed of steel with heavy duty 5/8 shaft ensures durability in the most stressful conditions, the 9-Way Adjustable dial is located outside the body for easy access to adjust rebound and to control rear body separation. Great for street/strip use.(0 reviews) -
CR Series 9 Way Adjustable SHocks
HR Series High Resistance Rear Shocks/pair (HR32128)
HR32128 has REPLACED CR32138
1982-2004 Chevrolet S10 (-2″ / -3″ drop)
NOTE: Please note on your order if you have a transbrake, footbrake, or manual transmission/stick shift.
Collapsed Length: 12-3/4″, Extended Length: 19-1/8″, Approx. Ride Height: 14.75″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Calvert Racing’s HR Series 9-Way Adjustable High Resistance Rear Shocks twin tube design has what you need for all around best performance and maximum consistency. The dampeners allow you to control rear body separation through an external dial to keep the tires planted PLUS the upper end of the dial offers higher resistance of separation on hard acceleration, perfect for Drag Racing. Dialing to the lower numbers ease the separation for more comfortable street driving.
Constructed of steel with heavy duty 5/8 shaft ensures durability in the most stressful conditions, the 9-Way Adjustable dial is located outside the body for easy access to adjust rebound and to control rear body separation. Great for street/strip use.(0 reviews) -
Lifestyle
5 Limited Edition 2026 Calendars (LS-CAL 2026×5)
FIVE Limited Edition 2026 Calendars
2026 to the MAX!
2026 Calvert Racing Limited Edition Calendar makes a GREAT GIFT for the racing or car enthusiast and you can’t beat the price!!
Custom designed by Calvert Racing and printed locally, these colorful, high quality glossy wall calendars feature photos from nineteen actual Calvert Racing customers. Every month features a photo of a new vehicle, plus a special double CENTERFOLD section featuring one lucky customer’s race vehicle! Date blocks offer plenty of room for notes, U.S. Holidays and dates of interest are indicated as well.
SIZE: 8.5″ x 11″ folded, 11″ x 17″ hanging, drilled hole for hanging.
USA SHIPPING: IF YOU ARE ONLY ORDERING CALENDARS (NO OTHER PRODUCTS IN YOUR CART), PLEASE CALL US DIRECTLY TO RECEIVE THE BEST MAILING RATE. 661-728-9600, Monday-Friday, 8am-4:30pm Pacific Standard Time.
SPECIAL PRICE! Very limited number available… when they’re gone, they’re gone!
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Lifestyle
2 EXTENSION MAGNETS (LS-ExtMagnets2)
NEW!! TWO TELESCOPING MAGNETS
5″ collapsed, telescopes to 25″, clip for pockets. Strong magnet picks up those metal nuts, bolts, metal pieces from hard to reach places, under tool boxes, workshop nooks, under cars, anywhere you can’t – quite – reach. Great for toolboxes, glove compartments, junk drawers.
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