Darton Sleeves MID Cylinder Sleeve - 3.985 in Bore - 5.800 in Height - 4.325 in OD - Single Flat - GM LS-Series 57135BK standard volume upgrade of the

standard volume upgrade of the M340

Model 4003

Fits factory in-bed hitch system

(Quick disconnect lead not included

Tablet / Carrying Case Included

Darton Sleeves MID Cylinder Sleeve - 3.985 in Bore - 5.800 in Height - 4.325 in OD - Single Flat - GM LS-Series 57135BK standard volume upgrade of theProduct Description: Cylinder Sleeve MID 3. 985 in Bore 5. 800 in Height 4. 325 in OD 0. 170 in Wall Single Flat Steel GM LS Series Darton is a manufacture of engine block sleeves. Using specialized ductile iron, their sleeves fit a variety of engine makes and sizes. Darton International was incorporated in 1978 with a goal of becoming a premier manufacturer of automotive speed equipment parts. In pursuit of this objective lead the founders to