2015-2020 Ford F150
Kit includes two aluminum bushings and 2 steel inserts for FACTORY leafspring front spring eye, 1 grease packet.
If you need replacement bushing for Calvert Springs, please call us directly.
(BK-34 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.
*** Please note that measurements/dimensions listed are for packaging/shipping purposes. Please call if you need exact measurements.
$65.00
In Stock
SET OF FOUR SQUARE U-BOLTS w/hardware
3″ axle diameter x 11″ long, axle BELOW springs.
Square U-bolts, Grade 5 material, zinc plated, 5/16″ diameter. Set includes 4 U-bolts, plates, nuts and washers.
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 FEQ page or CalTracs Installation Guide for more info.
(SQ300x900 shown)
SET OF FOUR SQUARE U-BOLTS w/hardware
3″ axle diameter x 15″ long, axle BELOW springs.
Square U-bolts, Grade 5 material, zinc plated, 9/16″ diameter. Set includes 4 U-bolts, plates, nuts and washers.
SQUARE U-BOLTS (spring OVER axle): 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 CalTracs Installation Guide for more info.
(SQ300x900 shown)
TIE DOWN BRACKETS – SET OF TWO, 45 degree angle
One of the little annoyances many racers have is finding a place on their race car to tie it down onto a trailer or hauler without damaging the car and having to crawl under to find a spot for a strap/hook to load/unload/load again after a long day racing….
IF YOU HAVE CALTRACS, YOU HAVE TIE DOWN POINTS!
Secure your vehicle to a trailer or hauler with EASY TO INSTALL/EASY TO ACCESS Tie Down Brackets. Designed to bolt onto your CalTracs Mounts and LEAVE ON without affecting performance. Can be used in different configurations, depending on your needs.
1/4″ Zinc-Plated Steel, 45 degree angle. Overall size: 5-1/8″ x 4″; Hole is 1-3/8″ diameter. Manufactured in USA by Calvert Racing.
SPRING PERCHES FOR 3″ AXLE TUBE
Set of (2) Two Perches. Fully enclosed for added strength, pedestal tabs ensure heat penetration when welded to housing. Perch extends to center line of axle tube for more surface area. Precision laser cut. Requires welding to axle, see graphic for info.
Check out the comparison graphic to see how Calvert’s patented Heavy Duty Perches compare to other manufacturer’s stock perches.
Patented HD Axle Perches. Universal design fits nearly every application. Available to fit the most common axle tube diameters; 2.25″, 2.5″, 2.75″, 3″, 3.25″ and 3.5″
WELDING ONTO AXLE: Pinion angle recommendation is -2 to -4 degrees when used with CalTracs. NOTE: This is the angle of the pinion in relation to the angle of the output shaft of the transmission, NOT the driveshaft. Add the angle of the pinion yoke to the angle of the output shaft with the vehicle sitting at rest with weight on the tires.