Extreme Adjustable Billet 4-Link Chassis Brackets
Our extreme adjustable billet 4-link bracket system was designed by Rick Jones and has been installed on RJ Race Cars for over 15 years. This 4-link system features billet weld-on chassis brackets that utilize a unique bolt-on 4-link plate system with a keyway that allows both top and bottom 4-link plates to move up and down in increments of 1/8", allowing fine tune adjustments to be make to the instant center of the 4-link.
The zinc plated bolt-on upper and lower plates are CNC machined from billet 4140, and are heat treated for added strength to stop hole elongation to provide years of consistency on even the most extreme applications. The weld-on chassis brackets are CNC machined from billet 4140 with all holes drilled and reamed for an exact fit. The system uses a unique keyway system for extra strength. The bolt-on plates each have qty-6, 1/2" holes that have a .625" spacing and are available in steel or the titanium upgrade option (saves 4-1/2 pounds). When tuning a car with traditional one piece 4-link brackets the smallest change you can make to the spread
This kit offers more strength and adjustability than any other kit on the market. The kit comes complete with NAS bolts and ARP 12-point nuts. Sold in pairs.
We offer 4 different styles of weld-on billet chassis brackets. They are available in different heights/configurations to fit any chassis crossmember setup:
• 13" center-to-center, 1-5/8" round tube notches (original RJ version)
• 15" center-to-center, 1-5/8" round tube notches (2" raised top crossmember)
• Tall, no top notch, 1-5/8" lower round tube notch (fit your own top crossmember, lower is preset)
• Tall, blank, no notches top or bottom, universal fit, able to be fit to square tube chassis or any notch desired for round tubes
All versions of the weld-on brackets use our same bolt-on 4-link plates.
During installation while mocking up and welding we recommend the use of grade 8 bolts. After all the welding is complete we recommend reaming the holes and using our NAS 4-link bolt kit during final assembly for even less bolt movement. (Do not use a drill bit!)
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