Four rivets hold the regulator asm on the door panel but the switch is more than likely the problem.
The Motors was created in 1977.
You will need to remove the inside door panel of your 1977 Chevrolet blazer. Remove the window crank linkage. Remove the window crank retaining bolts. Reverse the process to install the new window crank.
How do I replace the power window switch on 1977 Corvette coupe
Don't Lean Out the Window was created in 1977.
== ==
Top of the passenger fender well. Silver box about 4x5 inches.
165 km/h or 103 mph.
Follow the fuel line from the fuel tank to the engine and you will find the filter.
The Red Hand Gang - 1977 The Face at the Window 1-1 was released on: USA: 10 September 1977
== ==
450 series is far superior of the 400 series motors. 1977 450sl series is far superior of the 400 series motors.
When I had this problem, it was a connector that had come loose. You will need to remove all screws on the instrument panel, pull it out (I wasn't able to pull it completely off, just enough to get my hand back there and I could feel the dangling wire and where it connects). Gauge works now.