Home / Brake Lathe Accessories / Ammco Style 1″ Standard Arbor Ammco Style 1″ Standard Arbor $424.56 Part Number: A3101A OEM 903101 use on Models 2002, 3000, 4000, 4100, 7000, 7500, 7700. Ammco Style 1" Standard Arbor quantity Add to cart UPC: 682488086235 Category: Brake Lathe Accessories Tags: 1 inch arbor, 903101, Ammco Related products Ammco Type Spring Silencer (Small) – 9″ Diameter with a 1/2″ Spring $41.95 Part Number: 980-SAdd to Cart On Backorder7 PC. Combination Light Truck Adaptor Set $592.03 Part Number: A9299Add to Cart Bell Clamp/Alignment Cup (Small) $151.24 Part Number: A3577Add to Cart Long Protective Boot Spindle (Ammco 903085) $36.01 Part Number: A3085Add to Cart