What model truck?

48-54 (and others) 1/2 ton do not need reaming.

Most others and larger trucks are reamed after installing.

Many automotive machine shops can do this for a reasonable charge.


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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