[L-head]

The early pumps (37) were tapered and sealed with a couple of seals located on the taper. Later pumps (38-40), which yours appears to be, has a flat gasket or ring behind the lock ring and the timing cover. Red's Vintage Parts.Com has a list of 60hp parts and lists repro pump spanner wrenches for both type pumps. Most of the kits have both types of seals, the impeller, brg, spring, rubber nose cover will fit either type pump. I did not see any kits on this web site. They are rebuildable.