Bellcrank (SN < 340999 W/ STRAIGHT ADJUSTABLE FRONT AXLE). PART NO: A-AR93359. Marked R71082. . MODELS: John Deere TRACTOR: 2440 (SN < 340999 W/ STRAIGHT ADJUSTABLE FRONT AXLE) John Deere TRACTOR: 2640 (SN < 340999 W/ STRAIGHT ADJUSTABLE FRONT AXLE).