The 54/55 1st gen bracket is same as 216 due to the waterpump/damper position being the same. 55 2nd through 62 had the different lower waterpump and larger damper so they needed a different bracket to line up the generator.

I had to modify my mount to line up my 57-to-54 swap.

~~ Jethro
1954 3100
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1951 3100 (gone) / 1956 4400 (still in the neighborhood) / 1957 6400 with dump body (retired) / 1959 3100 panel (in the woods junked) / 1978 Custom Deluxe K10 / 1993 S-10 4.3 / 2004 Chevy Crew Cab / 1945 John Deere H / 1952 John Deere B / 1966 John Deere 2510 / 1967 John Deere 1020