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CalTracs - Trucks
CalTracs Truck (7810)

2026 Ford F-150

THIS SET REQUIRES AND INCLUDES 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.

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)
$495.00 Add to cart
Accessories
SPRING SHACKLES/set (SH-300x562HD)

Calvert Racing Shackles and Bushings, pair

Fits: S10 trucks with FACTORY multi springs only (will NOT currently fit trucks with Calvert Springs).

Toss out your old worn out S10 shackles for a new HEAVY DUTY replacement. Set includes rubber bushings for the upper frame and rear spring eyes. Sold as a pair, required hardware included.

NOTE: SHACKLES SHOULD MOVE FREELY WHEN VEHICLE IS ON THE GROUND. VERIFY BY WATCHING THE INSTALLED SHACKLE AND SPRING WHILE SOMEONE BOUNCES ON THE BUMPER.

(0 reviews)
$90.00 Add to cart
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!

(0 reviews)
$20.00 Read more
Australia
HR Series Rear Shocks/pair 15″-16″ Universal (HR22131)

Universal 9-Way Adjustable Shock pair. Designed for vehicles that fit shocks with 1/2″ eyelet on BOTH ends.

Also fits: AUSTRALIAN VEHICLE: 1962-1981 Valiant*

HR Series High Resistance Shocks have all the benefits of our CR Series Rear Shocks 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.

* 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

(0 reviews)
$320.00 Add to cart
Australia
HR Series Rear Shocks/pair 13″-13.5″ Universal (HR22116)

Designed for vehicles that fit shocks with 1/2″ eyelet on BOTH ends.

Universal 9-Way Adjustable Shock pair.

HR Series High Resistance Shocks have all the benefits of our CR Series Rear Shocks 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.

Also fits: AUSTRALIAN VEHICLES: 1971-1984 Holden HQ/WB Ute, One Tonner, Panel Van*

* 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: 11.58″, Extended Length: 17.5″ *

* Approximate lengths. Please note that 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.

Please call if you have any questions.

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.

Generic eyelet/eyelet shock shown

(0 reviews)
$320.00 Add to cart
CalTracs - Trucks
CalTracs Truck (5512)

2006-2009 Dodge Ram 2500 2WD MEGA CAB ONLY

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)
$495.00 Add to cart
Accessories
ALUMINUM BUSHING/SET (BK-72)

2004-2008 Ford F150 & Lightning

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)

(0 reviews)
$65.00 Add to cart
CalTracs - Standard
CalTracs MX (4229-MX)

Designed for applications with inboard springs.

1970-1974 Dodge Challenger w/ 3″ stock inboard kit

1966-1973 Dodge Charger w/ 3″ stock inboard kit

1975-1978 Dodge Charger w/ 3″ stock inboard kit

1966-1976 Dodge Coronet w/ 3″ stock inboard kit

1970-1973 Plymouth Barracuda w/ 3″ stock inboard kit

1966-1970 Plymouth Belvedere w/ 3″ stock inboard kit

1965-1970 Plymouth Fury w/ 3″ stock inboard kit

1975-1978 Plymouth Fury w/ 3″ stock inboard kit

1967-1971 Plymouth GTX w/ 3″ stock inboard kit

1968-1973 Plymouth Road Runner w/ 3″ stock inboard kit

1966-1974 Plymouth Satellite w/ 3″ stock inboard kit

***

To get the most out of your CalTracs, we recommend that your installed CalTracs bars are close to parallel to the ground when fully loaded. Sometimes that configuration is difficult to achieve depending on the mods or equipment you have installed on your drag race car. CalTracs MX helps solve that!

***

Full CalTracs MX kits for cars feature our new MX 3-Hole Adjustable Rear Mounts, MX 4-Hole Adjustment Pivot Plates, and upgraded 9/16” bolt pivot hardware, these kits offer up to TWELVE adjustment settings (compared to two hole adjustable settings in Standard Drag Profile kits) to allow for fine tuning your CalTracs for the best HOOK possible on your racecar. Our new MX rear mount and MX pivot plate designs keep the overall CalTracs assembly set-up above the tire rim line on 15” wheels for track competition compliance and safety, just 1/2” longer than our Standard Drag Profile CalTracs.

EACH KIT ALSO INCLUDES a set of U-BOLTS for stock rear ends. If your vehicle has been modified, please call us so we can sent the correct size. 661-728-9600, M-F, 8am-4:30pm Pacific Time.

****

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. Rod Ends/Heim Joints NOW COME WITH GREASE ZERK. Add a small amount of grease to minimize rattle.
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.
***

Separate MX Mounts and Pivot Plates are available to upgrade your current CalTracs, call for details.

***

NOTE: MX Kits are not available for trucks. Your final product may vary from photo depending on your application. U-bolts NOT included in the kit but are available if desired.

FULL COLOR INSTALLATION GUIDE INCLUDED.

Complete set includes: 2 MX Rear Mounts (may differ from photos depending on your application), set of 4 MX Pivot Plates, set of 4 Heim Joints/Rod Ends, 2 Force Transfer Links, and required hardware.

Please note that this kit was designed to use your Leafsprings. Specially designed CalTracs Wrenches are available separately in CalTracs Replacement Parts or Parts & Accessories.

(0 reviews)
$540.00 Add to cart
Accessories
U-Bolts, Round/set, 2.5″x7″ (UR250x70)

SET OF FOUR ROUND U-BOLTS w/hardware

2.5″ axle diameter x 7″ long LIMITED SUPPLY

Round U-bolts, Grade 5 steel, rust resistant coating, 1/2″ diameter. Sets include 4 U-bolts, with nuts and washers.

NOTE: While you can use your vehicle’s stock ubolts with CalTracs, Calvert Racing’s 1/2″ diameter u-bolts is an upgrade as most stock applications come with 7/16″ diameter u-bolts. We recommend torqueing the u-bolts to 65-70 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 the FAQ page on this website or CalTracs Installation Guide for more info.

(UR250x60 shown)

(0 reviews)
$35.00 Add to cart