Greetings all!

I have a vintage Allsop Softride Stem, and boy is it getting noisy. I am about to break it down for lubrication, but knowing it was built with bushings and originally had rebuild kits makes me want to replace the moving parts. Does anyone know of a source that still has these parts? Looks like the manufacturer stopped supporting these things ages ago. Failing that, specs on the bushings? Hopefully McMaster or the like has replacements. I don't want to go back to rigid stems



Aforementioned stem for reference. If it helps, mine is the 150 mm length, aluminum, 1 1/8" aheadset version.