According to the parts listing, the one with the knob wouldn't be correct for a '50 pickup. Those were used in later years on pickups and on lots of passenger cars.(blue highlight)
The one for '50-'51 pickups is listed as 17-1/4" long (yellow highlight)
Attachments
Accelerator Pedal Rod.jpg (91.02 KB, 110 downloads)


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.