Hit the brakes and make sure you come to a complete stop with a new set of wheel cylinders for your 39-48Fits Ford car from Speedway Motors! Save your valuable time and money shopping for your projects needs with our simple, one-click solution for rebuilding your front drum brake setup! Kit Contains: (1) Speedway Left-Side 1939-1948Fits Ford Car Front Wheel Cylinder 1.25 x 1. (1) Speedway Right-Side 1939-1948Fits Ford Car Front Wheel Cylinder 1.25 x 1. Speedway 1939-1948Fits Ford Car Front Wheel Cylinder 1.25 x 1 Whether you are restoring a classic or building yourself a traditional hot rod, you need a set of our new stainless steel sleeved wheel cylinders. We start with all new casting, install corrosion resistant stainless steel sleeves with news pistons, cups and seals. Each cylinder has two bore sizes just as the originals did. To adapt to an AN# 3 brake line, use fitting # 617-4132 along with crush washer # 617-3513.  Includes right and left side wheel cylinders. 7/16"-20 straight thread inlet. Bleeder is threaded 3/8"-24. Bore size 1.25" Bore size (opposite): 1.00" Thread Pitch: 7/16"-20 Straight Thread.