I believe my '37 Chevy originally came with a bearing. See Old Chevy manual 1929-41, group 0.649, illustrations pg. 7 and 9. To my relief someone replaced it with a standard bushing in years past with no apparent problems.
At the risk of passing on undocumented advice I will share what I have been told by my mechanic friends. They say to take a magnet with you to the auto parts counter and accept only a non-ferrous part. They say the newer bushings that contain iron particles were done to save money in manufacturing and tend to fail early. I am not where I can share the part number but the one I placed in my other project that did not attract a magnet had a suffix to the part number "-HD" which I assume means heavy duty. Note that Paul has referenced a part number ending in "HD" so I am guessing that is the optimal one. In my limited experience, these bushings are not dripping with lubricant and seem dry so don't let that scare you away.
Kent
