In number of leaves it says 7(6/1). What does that mean? ()

2000 - 2013 Suburban 2500 / Yukon XL 2500 heavy duty rear leaf spring, 3700 lbs capacity, 7(6/1) leaves

Spring Capacity = 3700 lbs Width = 2-1/2 # of Leaves = 7(6/1) Measures (A/B) = 30 x 30 Pack Thickness = 3-11/16 Bushings Included Sold Per Side - Order Quantity 2 for a pair Heavy Duty Replacement Suburban 2500 / Yukon XL 2500 Will Not Fit on Suburban 1500 / Yukon 1500 as they use Coil Springs 5160 ... See More

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1999 - 2010 2500 / 3500 rear leaf spring, 3600 lbs capacity, 7(6/1) leaves

Spring Capacity = 3600 lbs Width = 2-1/2 # of Leaves = 7(6/1) Measures (A/B) = 32 x 32 Pack Thickness = 3-11/16 Bushings Included Front Eye Uses 5/8 x 4-1/2 Bolt Rear Eye and Shackle Eye Use 9/16 x 4-1/2 Bolt Sold Per Side - Order Quantity 2 for a pair

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1969 - 1972 GM Pick Up Rear Leaf Spring, 3390 lbs capacity, 7(6/1) leaf

Spring Capacity = 3390 lbsWidth = 2-1/2# of Leaves = 7(6/1)Measures (A/B) = 26 x 26Pack Thickness = 2-13/16Includes BushingsSold Per Side - Order Quantity 2 for a pair

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1973 - 1987 GM 4x4 Pickup and Suburban (K10 / K20) rear leaf spring, 2775 lbs capacity, 7(6/1) leaves, 52" spring

Spring Capacity = 2775 lbs Width = 2-1/2 # of Leaves = 7(6/1) Measures (A/B) = 26 x 26 Pack Thickness = 2-11/16 Bushings Included Sold Per Side - Order Quantity 2 for a Pair

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1989 - 1991 Suburban 4x4 rear leaf spring, 7(6/1) leaves, 2300 lbs capacity

Spring Capacity = 2300 lbsWidth = 2-1/2# of Leaves = 7(6/1)Measures (A/B) = 26 x 30Pack Thickness = 3-3/16Bushings IncludedSold Per Side - Order Quantity 2 for a pair

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