I took my rockers to Larrowe and sons, in Sandy Oregon, However now I think it is the sons now, but whatever the case a very nice job was done, and was very reasonably priced. (don't remember the cost, but I do remember it wasn't that much) And the way to determine if they need rebuilt is to diassemble and look at them, if you can't tell, then probably they don't. In my case it looked like they had lost oil supply for about 2 years. There was no mistaking the carnage. But as a testament to these old engines, it looked like the oil line had broken at some point in its life, and was simply replaced. I ran it like that for about 20 years.
