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CalTracs - TrucksCalTracs Truck (7610-300)
1968-1972 Ford 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 #7610-325
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CalTracs Rear Mounts
CalTracs Rear Spring Mount, Left (MT-37L)
Chevrolet S10 with shock mounts.
SOLD SEPARATELY
LEFT Rear Spring Mount for CalTracs assembly.
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.
RIGHT mount available, part # MT-37R
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CalTracs Rear Mounts
CalTracs Rear Spring Mount (MT-2)
1970-1981 Chevrolet Camaro.
SOLD SEPARATELY
Rear Spring Mount for CalTracs assembly
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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CalTracs Pivot Plates
CalTracs HD Pivot Plates, 2 hole (PL-0522)
SET OF FOUR RACING PROFILE PLATES
Designed for RACING TRUCKS. Two Hole, Berlin style plates for center spring eye. Made with 5/16″ Mild Steel, black powder coated for added durability. 5″ long, measured from center of spring eye to bottom of plate.
IMPORTANT: INCLUDE YEAR, MAKE AND MODEL IN THE CUSTOMER NOTES SECTION SO WE MAY VERIFY THE CORRECT PARTS ARE SENT.
NOTE: It is recommended that you use the hole that allows the traction bars to be most parallel to the ground when your vehicle is fully loaded, weight on tires.
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Lifestyle
Limited Edition 2026 Calendar (LS-CAL-2026)
2025 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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Australia
CR Series Rear Shocks/pair 15″-16″ Universal (CR22131)
LOW QUANTITIES LEFT IN STOCK – will be replaced with HR22131, High Resistance Shocks
Universal 9-Way Adjustable Shock pair. Designed for vehicles that fit shocks with 1/2″ eyelet on BOTH ends.
AUSTRALIAN VEHICLE: 1962-1981 Valiant*
* Spring ride heights or shock location may affect part numbers. Contact our Australian Dealers for information.
NOTE: Please note on your order if you have a transbrake, footbrake, or manual transmission/stick shift.
Collapsed Length: 13-1/8″, Extended Length: 20″, Approx. Ride Height: 15.5″ *
*Approximate lengths. Note: Racing shocks require different collapsed/extended lengths than stock/street shocks. Measure center eyelet to eyelet with car on the ground and weight on the tires.
Calvert Racing’s CR 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.Generic eyelet/eyelet shock shown
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CalTracs Pivot Plates
CalTracs Pivot Plates/set of 4 (PL-0423)
SET OF FOUR PLATES, THREE HOLES
Designed for RACING VEHICLES. Three holes for adjustability on lifted Trucks. Made with 5/16″ Mild Steel, black powder coated for added durability. 6.5″ long, measured from center of spring eye to bottom of plate.
IMPORTANT: INCLUDE YEAR, MAKE AND MODEL IN THE CUSTOMER NOTES SECTION SO WE MAY VERIFY THE CORRECT PARTS ARE SENT.
NOTE: It is recommended that you begin using the hole that allows the traction bars to be most parallel to the ground when your vehicle is fully loaded, weight on tires. Adjust according to how your vehicle responds and your desired level of hook.
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Leafsprings
Split Mono Leafsprings/pair -1″ Drop (321-34)
1973-1987 Chevrolet C-10 Truck (56″)*
*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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Lifestyle
Calvert Hat Black (HAT-B)
BLACK HAT
100% cotton baseball-style cap with updated fully embroidered Calvert Racing logo in blue and grey. Eyelet vents. Velcro back for the perfect fit! Available in Black or Navy Blue. Camo styles (green and pink) also available.
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