Application : Chevrolet W4500 Tiltmaster Drum Brake Wheel Cylinder. 2004 Chevrolet W4500 Tiltmaster Fuel: GAS; Bore: 1.313 In.; From 1/01/04; Position: Rear Left Rearward;. 2005 Chevrolet W4500 Tiltmaster Fuel: GAS; Bore: 1.313 In.; Position: Rear Left Rearward;.