Because you didn't specify engine I am guessing a little.
GM product of this era used a little plastic disc cover on the side of and near the top of the carbourator with a Bi-mtal strip inside to apply the chaoke. There is a wire from the car to the coil to heat it in a predictable way and release the choke. There is a second wire usually from the disk just attached to a screw to ground the circuit.
my chevy blazer 1984 the air conditioner blows from down side only.
no
The choke light on a 1984 Chevy El Camino will come on if the choke fails to open or close. The choke should be visually inspected to verify functionality.
on the front axel
Not unless the 1992 is 4x4.
need diagram
My 1980 Blazer has a 16 gallon tank, yours should be similar.
a full size blazer top weighes about 250 to 300 lbs
Starter solenoid? It is attached to the starter.
The bolt pattern on a 1969-1991 K-5 Blazer is 6 on 5.5" (139.7mm).
yes it will up to 93 as long as they are bothe 4wd or to wheel drive
http://www.coloradok5.com/heatercore.shtml Check this out its a very helpful writeup