My friend who runs a machine shop in Fayetteville Tennessee has done several nationwide searches for 20 under bearings over the past 5 years. No luck, and he's in the business of grinding crankshafts and selling parts, not shoveling fertilizer on an internet chat room. He has had to grind several crankshafts down an extra .010 in order to get rod bearings. Parts vendors lie, just like other people. His experience is precisely why I have been researching alternatives to the dedicated bearings.
Jerry
