Parts list: № Number Qty Name Options 1 AR55421 1 SPRING (SUB R51302) Next page: 70-15 LEVER LOCK (LIFT ASSIST WHEEL HYDRAULIC MAST ATTACHMENT)( -1977) [B08] 70-16 LEVER LOCK (LIFT ASSIST WHEEL HYDRAULIC MAST ATTACHMENT)( -1977) [B09] 70-17 RETAINER, HYDRAULIC COUPLER (1986- ) [B10] 70-2 HYDRAULIC HOSES AND FITTINGS (DUAL LIFT ASSIST WHEELS WITHOUT HYDRAULIC MAST)(1976-1981) [A20] 70-3 HYDRAULIC HOSES AND FITTINGS (DUAL LIFT ASSIST WHEELS WITHOUT HYDRAULIC MAST)( -1976) [A21] 70-13 LEVER LOCK ( -1976); JD 2510, 3010 AND 3020 ( -122,999); 4010 & 4020 ( -200,999) [B06] 70-12 SINGLE LEVER CONTROL FOR LIFT ASSIST WHEELS AND TRACTOR ROCKSHAFT [B05] 70-11 TRACTOR ROCKSHAFT PISTON COVERS (LIFT ASSIST WHEEL ATTACHMENT)(1975-1981) [B04] 70-10 TRACTOR ROCKSHAFT PISTON COVER (4040, 4240 AND 4440 TRACTORS)( -1981) [B03] 70-1 HYDRAULIC HOSES AND FITTINGS (DUAL LIFT ASSIST WHEELS WITHOUT HYDRAULIC MAST)(1975-1976) [A19]