Used for 2.43" Journal Includes 2-228603-20 & 1-228606-20. MODELS : Allis-Chalmers TRACTOR: WC,Allis-Chalmers TRACTOR: WD,Allis-Chalmers TRACTOR: WF,Allis-Chalmers TRACTOR: W25,Allis-Chalmers TRACTOR: D17 (GAS),Allis-Chalmers TRACTOR: WD45,Allis-Chalmers TRACTOR: 170 (GAS),Allis-Chalmers TRACTOR: 175 (GAS).