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Accessories
U-Bolts, Square/set, 2.5″ x 9″ (SQ250x90)
SET OF FOUR SQUARE U-BOLTS w/hardware
2.5″ axle diameter x 9″ long, axle BELOW springs.
Square U-bolts, Grade 5 material, zinc plated, 5/16″ diameter. Set includes 4 U-bolts, plates, nuts and washers.
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 FEQ page or CalTracs Installation Guide for more info.
(SQ300x900 shown)
(0 reviews) -
CalTracs - Trucks
CalTracs Truck (3300)
1988-1998 Chevrolet Silverado C1500
1988-1998 GMC Sierra C1500
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) -
Accessories
U-Bolts, Round/set, 3.5″x7″ (UR350x70)
SET OF FOUR ROUND U-BOLTS w/hardware
3.5″ axle diameter x 7″ long, axle ABOVE springs
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.
(UR225x70 shown)
(0 reviews) -
Leafsprings
Split Mono Leafsprings/pair (420-34)
1963-1976 Dodge Dart
1962-1976 Dodge Demon
1964-1969 Plymouth Barracuda
1970-1976 Plymouth Duster
1962-1964 Plymouth Savoy
1960-1976 Plymouth Scamp
1960-1966 Plymouth Valiant
-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.
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 Rear Mounts
CalTracs HD Rear Spring Mount (MT-1500)
Chevrolet Silverado 1500
GMC Sierra 1500
SOLD SEPARATELY
Rear Spring Mount for HD Truck CalTracs assembly. Built for 3″ axle tube/2.5″ wide spring.
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 LEFT OR RIGHT SIDE.
(0 reviews)