I think the sharper to the right is plausible but unlikely.
If the amount of steering is before tires hit frame, springs, or what not.. then the truck being built symmetrical left and right should turn same either way. No reason to give up turning radius on either side just to say the truck turns more to the other side.



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-