It seems to be that there is no stock for rear 2-inch drums that are spec'd for pre-1969 vehicles.
The Raybestos 2955R is specified only for 1969 to I think 1975 vehicles.
Here I compare one of my existing 2-inch drums with the Raybestos 2955R. My drum is of unknown origin, it is finned, as is the 2955.
The new drum weighs 8.78 kg / 19.3 lbs
The original drum = is 7.85 kg / 17.3 lbs
Measurement B is the most important, and in this respect they match.
The edge of the hub-hole on the 2955 is flared, and this seems to be the only major difference between them. This flare might interfere with mounting some wheels. I find that the magnum wheel (or what I think some people call road wheels) does seat properly against the 2955.
Was there a change in rim design between 1968 and 1969, specifically around the hub hole?
I note that the pair of 2955R's that I bought from Rock Auto 3 weeks ago did not have any balance weights welded to them. Most of the surface of 2955's is not machined, making it an open question if they were cast precisely enough to be balanced without needing weights.
The Raybestos 2955R is specified only for 1969 to I think 1975 vehicles.
Here I compare one of my existing 2-inch drums with the Raybestos 2955R. My drum is of unknown origin, it is finned, as is the 2955.
The new drum weighs 8.78 kg / 19.3 lbs
The original drum = is 7.85 kg / 17.3 lbs
Measurement B is the most important, and in this respect they match.
The edge of the hub-hole on the 2955 is flared, and this seems to be the only major difference between them. This flare might interfere with mounting some wheels. I find that the magnum wheel (or what I think some people call road wheels) does seat properly against the 2955.
Was there a change in rim design between 1968 and 1969, specifically around the hub hole?
I note that the pair of 2955R's that I bought from Rock Auto 3 weeks ago did not have any balance weights welded to them. Most of the surface of 2955's is not machined, making it an open question if they were cast precisely enough to be balanced without needing weights.
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