Passenger side door mirror longer than driver side door mirror?

[HeavyHauler]

Are the factory style passenger side door mirror and driver side door mirror for 1967-1969 C10 trucks supposed to be the same length?

I purchased some brand new door mirrors from a well known parts supplier and the passenger side door mirror is longer by about a inch so it sticks out a little more. They are the small round mirror kind.

They are for my 1968 Chevy C10 short bed fleetside. This is not my truck but the exact style of mirrors.