1/2 ton original wheels had 6 clips per wheel. GM later went to 3 per wheel when the wheels were widened to 5" for the 6 lug 16" wheels. I have a set of the 4.5" wide wheels and a 4" wide one (47-48?) and also a 5" wide wheel that has just the 3 clips.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.