49 thru 51 Lincoln and Mercury drums that are 5 on 5 1/2" bolt pattern are not reproduced. They are likely not interchangeable either. I modified early F100 drums to fit one of my Mercury cars but I don't know what would fit the Lincolns. They had the big 337 flathead V8 so everything was heavier duty on them. A person may have to do a conversion if no serviceable drums can be found. I'd check other pickup and Lincoln drums to see if any are similar enough to be able to use in some way.