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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) -
Accessories
6 Degree PINION SHIMS/PAIR-TRUCK (6-D562)
6 DEGREE SHIMS w/3/8″ pin with 9/16″ diameter head, most trucks – SET OF TWO
Pinion shims to help correct pinion angle under spring perches. For 2.5″ wide springs. Made of Billet aluminum.
INCLUDES 3/8″ CENTER PIN AND BOLTS TO FIT ONTO CALVERT RACING 2-1/2″ WIDE SPLIT MONO LEAFSPRINGS. Hole prevents possible slippage on more extreme angle. If you have a multi-springpack, you may need longer bolts.
Also available: 2 and 4 degree pinion shims
6-D500 SHOWN
(0 reviews) -
Accessories
6 Degree PINION SHIMS/PAIR-CAR (6-D500)
6 DEGREE SHIMS w/3/8″ pin with 1/2″ diameter head most cars- SET OF TWO
Pinion shims to help correct pinion angle under spring perches. For 2.5″ wide springs. Made of Billet aluminum.
INCLUDES 3/8″ CENTER PIN AND BOLTS TO FIT ONTO CALVERT RACING 2-1/2″ WIDE SPLIT MONO LEAFSPRINGS. Hole prevents possible slippage on more extreme angle. If you have a multi-springpack, you may need longer bolts.
Also available: 2 and 4 degree pinion shims
6-D500 SHOWN
(0 reviews) -
Australia
Parabolic Mono Leafsprings AUSTRALIA -1″ (PS680-7)
2″ WIDE MONO PARABOLIC LEAFSPRINGS
1″ drop, most vehicles.
1986-1982 Ford Falcon
Alternative for aftermarket spring. Substantially lighter than multi-leafsprings.
Parabolic spring design distributes stress along the length of the spring, reducing stress on the arch. Each spring pair is arch verified. Center pins and bushings included.
CalTracs Solid Bushings included when ordered directly from Calvert Racing.
NOTE: These springs are designed for DRAG RACING and have a higher spring rate / stiffer ride than stock springs. Springs are dipped in black paint before assembly, but some raw steel may show due to deburring/grinding sharp edges.
Calvert 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)