caltracs

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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
Australian
CalTracs Standard Australian LOW PRO (11601-MOD)

THIS KIT INCLUDES LOW PRO PIVOT PLATES.

Built for:

1968-1971 Holden HK/HT/HG Sedan, Panel Van, Ute, Monaro w/ Calvert PS840-4 2″ mono springs

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.
.
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)
$395.00 Add to cart
Australian
CalTracs Standard Australian LOW PRO (9101-MOD)

THIS KIT INCLUDES LOW PRO PIVOT PLATES.

Built for:

1971-1984 Holden HQ/WB Ute, One Tonner, Panel Van w/ Calvert PS910-860 2″ mono springs

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.
.
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)
$395.00 Add to cart
CalTracs Rear Mounts
CalTracs Rear Spring Mount (MT-11)

SOLD SEPARATELY

Rear Spring Mount for CalTracs assembly. Designed for Ford Mustang II with 8″ housing.

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.

(0 reviews)
$80.00 Add to cart
Accessories
FLIP CONVERSION KIT 1500 Series Trucks w/CalTracs INSTALLED (FLP-3130)

FLIP CONVERSION KIT for 1500 SERIES TRUCKS (for CalTracs)
1967-2019 Chevrolet Silverado and GMC Sierra Trucks

Basic FLIP CONVERSION KIT for 1500 Series Trucks with CalTracs* and a 3″ axle tube and 2.5″ wide spring* already installed.
Includes: Two Rear Mounts, Two patented Calvert Heavy Duty Perches, and set of Four U-Bolts with hardware.
A flip kit moves the axle from beneath the leaf spring to on top of the leaf spring, which lowers the truck.

ALSO AVAILABLE: Flip kit for 3″ axle tube and 2.5″ wide spring, part #FLP-3132

NOTE: This Part # REPLACES FLP-3134

*THIS CONVERSION KIT DOES NOT INCLUDE CALTRACS.

(0 reviews)
$210.00 Add to cart
CalTracs - Standard
CalTracs MX (6100-MX)

1960-1963 Ford Falcon

***

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
CalTracs - Standard
CalTracs MX (5110-MX)

1996-2003 Dodge Dakota RT Sport

***

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
CalTracs - Standard
CalTracs MX (4279-MX)

1974 Plymouth Fury, 3″ inboard

1975-1977 Plymouth Grand Fury, 3″ inboard

***

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
CalTracs - Standard
CalTracs Standard Low Pro (2109-1)

THIS KIT INCLUDES 1-HOLE LOW PROFILE PLATES.

For 1955-1957 Chevrolet BelAir with reverse eye spring. Works with frame rail pocket kit. Rod Ends/Heim Joints NOW COME WITH GREASE ZERKS. Add a small amount of grease to reduce rattle.

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.
.
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)
$440.00 Add to cart