Our new adjustable MD/HD 7/1 packs (shipped as 7/1) allows you to go back and forth between MD and HD rates. 2 packs in 1, no more worry about which to buy!
Leaving the 7th leaf installed, gives HD 7/1 configuration.
Removing 7th leaf gives MD 6/1 config and the same load & lift as MDs have always been. We also increased to 4 rebound clips, and used the HD main leaf thickness.
-"Shackleton" leaf packs are designed by Archive for severe duty off road travel, and made to travel from Alaska to Argentina! Quantity of 1 is a PAIR
-Made in USA with 5160 steel 2.5" wide steel, tip insert pads, 1/2 wrap, diamond point ends, 4 bolted rebound clips, top quality poly bushings and sleeves included.
-MD 6/1 configuration 0-750 lbs added to rear axle weight
-HD 7/1 configuration 500 min-1250 lbs added to rear axle weight
-Removing 7th leaf from top (above overload) lowers ~1" and reduces ideal load range by ~500lbs
-Stout main leaf supported end-to-end to endure all your shreddy sends
-Lift height (vs stock unloaded 4WD): see Product Fitment Notes below
-There is NOT a left or right version, Lean usually comes from the front. If one spring has a hair more arch, use it on driver side. Load your vehicle accordingly + adjust LF coilover so front helps rear.
-These springs are designed for more droop than stock springs. Archive Hammer Hangers recommended for best ride and max travel.
U-bolts (not included) available here: Square OE Style U-bolts or Round U-bolt flip style
-Archive's Stealth HD U-bolt flip kit with Option 3 or Option 4 w/ Archive Speed Bumps are optional ($30 discount optioned with springs)