Just bought and installed a tank from LMC for a 58 1/2 ton. Everything fit very easily change. LMC cost $149.95. Tank for the pre 53 costs the same. I think the difference is the pre 53 has a gravity feed and the post 54 has a pickup tube as part of the fank unit and fits in the top.
good luck

1954 Chevy Half-Ton
In the Stovebolt Gallery
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1958 Chevy 1/2-Ton Stepside
In the Stovebolt Gallery
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"Time's fun when you're having flies." ~~ OLD FROG