Not sure I ever tried that, but with good pins and bushings I wouldn't expect any real slop or side to side movement. Just a little flex perhaps, but not slop.
Spring pins and bushings seem to always be worn on these old trucks unless exceptionally low miles and well greased.

•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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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-