I believe the windshield regulator is held to the top of the dash by two bolts; no brackets or other pieces needed. The problem is it is very difficult to mount or remove the regulator without removing the dash first. On the Art Deco series (41-46) the regulator is relatively easy to access from under the dash but nearly impossible in the 37. Good luck, Kent
If the GMC regulator and mounting is the same as Chevy the attached photo will be what to expect. I found it impossible to access the regulator without removing the dash. The two screws used to secure the regulator to the cab frame could not be reached otherwise. Removing the dash is also a hassle since it was apparently factory installed after the regulator. I was forced to make some small cuts at one of the bottom corners in order to get enough clearance.
Last edited by 46Sparky; Fri Aug 07 2020 05:47 PM.
the truck I got does not have the rusty color part. on the cab center there is a grove cut for the regulator and 3 hole on left side and 3 holes on the right side it's like there should be that part in the picture that goes there.