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Kit includes; chrome moly 1-3/8″ tubular lower swing arm, 1-1/4″ chrome moly upper links with right and left hand threaded tube end, FK rod ends are 3/4′ diameter shank 5/8″ diameter hole
3/4 X 5/8 Rod Ends
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Part# 40-111 The Ultra-Pro laser link 4-link system from SW Race Cars features the optimum in tuning adjustments, 144 possible instant centers and is designed to withstand even the most severe drag race applications. The top bars are 1-1/4 x .095″ 4130 chrome moly tubing and the bottom bars are 1-3/8″ x .095″ 4130 chrome moly tubing. Weld in tube adapters feature wrench flats for easy adjustability. All brackets are 4130 chrome moly steel and precision, water-jet cut with 5/8″ holes for super strength and a wide range of adjustments. Also included is a 1-1/4″ chrome moly, cross tube to reinforce the brackets and housing. Grade 8 hardware is included. No rod ends are included but SW insists that only 4130 chrome-moly rod ends be used with any 4-link system.” 40-111 instructions
Dragster welded swing-arm – for S&W 4-link dragster with Strange rear housing, no shock mounts Swing arm tubing is 1-3/8″ x .095 chrome moly. (4) 64-610 (5/8″ x 3/4″ right hand) rod ends required (not included), (4) 65-120 jam nut required (not included)
4-Link Kit (4) 12-3/8″ long, 1″ diameter x .156 wall DOM tubes. Tubes tapped tapped 3/4″ left & right handed. (4) 40-118-1 frame brackets, (4) 40-118-2 rear housing brackets. Uses Part #40-121 rod end package (not included)
4-link tube, 1-1/4″ x .095 ” chrome moly, with 3/4″ welded tube ends, 17 1/2″ long with tube ends. Right hand on one end, left hand on the other. Used as the upper tube in S&W 4-link kits