Equalizer for 2" Wide Slipper Springs 13" Long 7/8" Center Hole Part Number: EQ-13 13-1/8" Long equalizer connects slipper springs on tandem- or triple-axle trailers and allows for enough movement between the axles to keep the ride smooth and the load undisturbed. Fits springs with 9/16" diameter eye. Features: Connects slipper springs on dual- or triple-axle trailers Slip arched end of front spring into equalizer so that it rests on keeper bolt Attach rear-most spring with shackle bolt through the eye Suspends from center hanger Transfers load and sudden impacts from one axle to another by permitting movement between the axles Distributes weight evenly Constructed of high-quality, 1/4" thick, hot rolled steel Results in smooth ride for trailer Kit Includes: GEB-78: 7/8" Grease Bolt CN-78: 7/8" Nut for 7/8" Grease Bolt 91635B: 9/16"-18 x 3-1/2" Shackle Bolt (Extra Long) SB-LN-9: 9/16" Lock Nut for 9/16" Shackle Bolt EQ-13: 13" Equalizer Specs: Fits 2" wide slipper leaf springs Center bolt hole diameter: 7/8" Side bolt hole diameter (for mounting spring): 9/16" diameter Side bolt hole diameter (for keeper bolt): 3/8" Dimensions: see diagram