[classiccar64]

Looking for this measurement on a 64 Mustang we are restoring..the opening on the rear quarter window..please see attachment...hope this works..
factory specs would help...both window channels are measuring different.

 

[Ivy66GT]

Hello Sandy,

Welcome to AFM.

The two sides for one of mine measure 1 7/16" and 1 5/8".

Its a Ford, close counts. The rear quarter trim sticks down into that opening with the black, fuzzy strips on either side of the glass. The only thing that matters is if the window goes up and down.

 

[classiccar64]

thanks for the insight,we don't have the glass etc to help...so a accurate measurement will make Shure nothing is out of wack.