The SA-001 unison shift assembly is what is often referred to as “equidistant”. When one saw moves, the opposite saw moves with it, either apart, or together. Mounting Bolts Spacing: End plates, 2 ea 5/16? thru-bolts, 2.750? spacing End plate hole distance, same as ordered shaft length Lengths Available: 24? up to 72? Standard length 48? unless otherwise requested Lengths over 48? will incur additional per foot charges Included Installation Parts: 4 pcs Swivel block (routing) pullies 4- 5/16 x 1.5? mounting bolts with washers and nuts 2 pcs cable clamps 1/8? ac 50' ac cable You can also add an SA-009 stationary bracket to allow for a stationary saw. Unison Shift Assembly