SHACKLE KIT, Leaf Spring, rear, 9/16 inch, 1 inch longer to help restore some ride height or level out the car for better stance and appearance, Retains stock shackle appearance, zinc plates, zinc studs, fine thread, See also 3388-1AK, 5630-1BK, 5630-4AK, 5630-4BK for mounting hardware options,
NPD Part Number : 5630-6L Manufacturer Reference #'s: Eaton Detroit Spring SHK789, C4DZ-5630-A
1965-1973 MUSTANG REAR, HD
1964-1965 FALCON
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
I was pleasantly surprised by the manufacturer's name, a really good one.
Submitted on September 29, 2019 by Brad C.
Quality
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Kit came with shackles, staked threaded shanks, nuts and bushings. Thread form is 7/16x20 (fine thread.) I ordered two kits. One came with 5/8" lock nuts, the other came with 11/16 non-locking nuts. Now my LH side won't match the RH side. I had to order lock nuts (pkg of 10, min qty) so that the two sides match. Weak quality control at manufacturer. Installation and performance is as expected.
Submitted on September 28, 2020 by William F.
YES I would recommend this product.
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Value
Installed easily on my 71 Mach 1 and it raised my car 3/4", just what I was looking for!
Submitted on June 06, 2021 by Dave D.
YES I would recommend this product.
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Good item as advertised.
Submitted on April 21, 2022 by Rick K.
YES I would recommend this product.
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Upon replacing the front coils springs (#5310-2 / #5310-12) and adding the GT leaf springs (#5560-32), I installed these 1" shackles to level my '66 coupe. The beefed-up suspension looks and rides great! A prior review mentioned the kit having various sized nuts...my kit came with 11/16 non-locking nuts.
Submitted on September 26, 2022 by Blaine W.
YES I would recommend this product.
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Submitted on October 28, 2022 by Ed H.
YES I would recommend this product.
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These shackles fit like the originals and increase the rear height to level the car.
Submitted on July 09, 2023 by Walt B.
YES I would recommend this product.
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These shackles raised the rear enough to level the car.
Submitted on July 15, 2023 by Walt B.
YES I would recommend this product.
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Quick delivery. Great product
Submitted on August 24, 2023 by Frank C.
YES I would recommend this product.
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Easy to fit, good price makes for a better stance, the more expensive ones are stainless steel. Pity they didn't do these black but as they cannot be seen it's no big deal all in all happy.
Submitted on March 21, 2024 by Roy W.
YES I would recommend this product.
Quality
Value