Two (2) New Aftermarket Interchangeable Brake Pedal Return Springs Fits IH/ Fits FARMALL Models: 300, 350, 400, 450, 460, 560, 660, ODS-6, OS-6, Super H, Super HV, Super M, Super MD, Super MTA, Super W-6, Super W6-TA, W-400, W-450 Specs: Amount Ordered: 2 Springs 0.073" Wire Diameter, 3.850" Overall Length, 0.620" Body Diameter, 2 - 4 Used Per Tractor Depending on Model (and Serial Number for the Super M Series) Interchangeable w/ Part Number: 357164R1