You cannot tell what the delivered wheel size was, unless you have the original order/receipt form.
On Chevrolet trucks the 16" wheels/tires were standard and a 15" option was available. The 15" tire diameter was most likely a little larger diameter than the 16" tire diameter.
I do not know about 1/2 ton GMCs in 1954; but, I think the GMC wheels might have been multi-part/piece.
Ok, thanks...didn't mean to hijack the thread but didn't want to make a duplicate post either. The rears are 16" split rims and the fronts plus the side mount spare are one piece 16" rims. I've been looking for another one piece 16" rim...then I came across a set of four 15" rims from a Nissan 4x4 that are a pretty similar style so I thought they might give me better odds of finding used tires cheap.
