Seat Shock Fits FARMALL Tractor H and M w/rear mounted shockOne New Aftermarket Replacement Rear Mount Seat Shock Absorber that fits the following makes and models: Fits Allis Chalmers Models: B, C, CA, RC, U, WC, WF ( All when Equipped with the optional Monroe Seat) Avery Models: A, BF, BG, R ( All with Monroe Seat) Fits Case Models: D, DC, DC 3, DC 4, DCS, DEX, DH, DI, DI NAR, DO, DO VS, DO STD, DOEX, DV, S, SC, SC 3, SC 4, SI, SO ( All when Equipped with a Monroe Seat) Fits International Models: F20 Late,