Jack,

The information in this 1947-48 Truck Cab booklet in the last section on windshield wiper checks and adjustments should be helpful in figuring out your situation.

From what you described, sounds like you will need to reposition your wiper arms to get everything back in line. Section 1 in the 1948-51 Shop Manual describes the how to part of wiper arm removal and installation.

Let us know if this is helpful please.

Dan

Last edited by Gdads51; 05/06/2023 1:02 PM.
~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
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US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)