Dale brought to my attention that at Louisiana they found the aftermarket filter too short to allow for a "crush" fit when the head was bolted on. If someone has an OEM filter, would you measure the length for me? McM has some shims that I think will easily address the problem, but I need to know the correct OEM length to pick the proper thickness shim. TM and Steiner are now selling the same filter, based on appearance and box.