Here we go again. Has anyone replaced the wheel cylinders from the 37-48 Ford bendix brake kit from speedway motors? The replacement cylinders are from a 1970's Ford 2WD pickup and most likely cross over to other Ford vehicles from the 70's era. Speedway is of no help. The wheel cylinders for 37-48 from speedway or many other suppliers are NOT the correct part. The cylinders need to be the 70's truck one's with the long pins. I'm hoping to find someone who has replaced these and has a part number. I am asking a very specific question. PLEASE do not clutter up the thread with offhand comments that do nothing to answer the question.