Tube, Tie Rod (W/ STRAIGHT AD AXLE 40" - 80" TREAD). PART NO: A-T22947. Dim A (1)12.690" long Dim B (2).760" ID Dim C (3)1.000-16 RH thread. . MODELS: John Deere TRACTOR: 1020 (W/ STRAIGHT AD AXLE 40" - 80" TREAD) John Deere TRACTOR: 1520 (W/ STRAIGHT AD AXLE 40" - 80" TREAD) John Deere TRACTOR: 2020 (W/ STRAIGHT AD AXLE 40" - 80" TREAD).