Right spot, but maybe the number is dirty. The 1045 hc is probably 1045 (another digit) c, possible example 10456C.

The 95089 is not a GMC number. Probably someone has migrated the carburetor to your truck.

Jon.


Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
If you truly believe "one size fits all," try walking a mile in your spouse's shoes!
The Carburetor Shop