M661 Drive Arm$37.00 Replacement drive arm for our M661. Connects with a drive spring to the reel. M661 Drive Arm quantity Add to cart Description Description Small drive arm (drive rod), for our M661. Connects to the reel using the DS21 Drive Spring. Part no DRIVEARM-SML Related products 2″ O.D. x 5/8″ Pulley $29.00 Add to cart 1/2 Hp Electric Motor $928.00 Select options Drive Springs $14.00 – $17.00 Select options Cable Machine Belts $15.00 – $19.00 Select options 7″ x 5/8″ Pulley $77.00 Add to cart