Where is the door lock on the passenger side? If in the door 42 -46. If in the door handle 41. Look at the rear window, if it has a pot metal bolted together surround it is 41, if only a rubber surround 42-46. The park lights look to be after market, that does not help I'd. It. Dave

1941 Chevy
"First rebuild - complete!"
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1941 GMC resting peacefully
1946/1947 Chevy Street rod on s10 frame complete
1945 GMC panel truck in line for restoration
1941 Plymouth stock complete
1941 GMC COE in restoration process
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1941 Chevy Coe uncertain future resting now