Thinking back on what Grigg said about external grooves.
All the bronze bushings I made had internal oil grooves.
Just another thought, can they be modified to take sealed needle bearings?

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!