In the continuing battle to revive my Allis HB112, I've recently had a couple of parts that were beyond my skill level: the pintle leak on pump housing from the T66X, and the double ended ball joint. At long last they are back from the machine shop. If only it would warm up enough to get them back onto the tractor...
Without the Service Bulletin, the machinist felt it would be better to build and hardened new pintles. The housing was bored out to remove the wear marks (18 mm on one side, 18.5 mm on the other). The new pintles are over-sized and custom-sized within the housing area. He added a second o-ring within the pump housing and moved the outer o-ring a smidgen closer to the housing so it would act as a dust seal. All in, it cost just over $230. I'm sure there are cheaper solutions, but I buy local when I can.
I purchased two new 5/16" ball joints from a not-so-local repair shop. He keeps them in stock because they are steering ball joints. The machinist cut them to length and welded them back together. He even saved the rubber boots. All in, it cost just over of $50, but there isn't much choice when items are NLA.
Funniest part? The machinist who did the work lives just down the road from me.