SET OF FOUR ROUND U-BOLTS w/hardware
2.81″ diameter x 7″ long, for axle ABOVE springs
Round U-bolts, zinc plated Grade 5 material, 1/2″ diameter, kits 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.
(UR275x70 shown)
If you are unsure which part number will best fit your vehicle, please call Calvert Racing at 661-728-9600, Monday – Friday, 8:00am-4:30pm, PST.
$35.00
In Stock
SOLD SEPARATELY
Rear Spring Mount for HD Truck CalTracs assembly. Designed for HD Trucks with 3.5″ diameter axle/2.5″ – 3″ 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.
SOLD SEPARATELY
1962-1967 Chevrolet Nova
1967-1969 Chevrolet Camaro
1967-1969 Pontiac Firebird
Rear Spring Mount for CalTracs assembly. Designed for 90 degree tabs.
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.
80 degree rear spring mount also available.
SOLD SEPARATELY
Rear Spring Mount for HD Truck CalTracs assembly. Designed for HD Trucks with 4″ diameter axle AND 3″ wide leafspring.
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.
Upgrade kit especially for Lifted or Offroad Trucks
Stronger, more robust bars and coarse thread rod ends eliminate binding, especially in the dirt.
SET OF TWO BIG LINKS and FOUR COARSE THREAD HEIM JOINTS
Replaces standard links and Heim joints on HD Trucks only.
1.5″ diameter x 26.5″ force transfer Big Links.
Made with 4130 Chromoly, the CalTracs preload Big Links are 1/4″ larger diameter than the standard force transfer link and are threaded specifically for added strength, ensuring maximum leverage and minimum flex. Gloss black powder coated for added durability.
Includes four (4) required coarse thread Heim joints.
NOTE: Standard Heim joints will NOT fit coarse threaded ends.
PLEASE INCLUDE YEAR, MAKE AND MODEL IN THE NOTES SECTION OF YOUR ORDER