To many steps to list here. I suggest purchasing a shop manual for that vehicle if you intend on doing this job yourself.
why is my 1997 chev blazer over heating
The 1998 Chevrolet Blazer dashboard speakers measure four inches by three inches. There is a dashboard speaker on each side of the dashboard.
The 1997 Chevrolet Blazer didn't come with a cabin filter.
Conflict
Yes, there is a headlight relay,
The 1997 Chevrolet blazer modulator valve is located on the firewall in the engine compartment. The valve will be on the passenger side of the firewall.
Yes. They both use the 4L60E transmission.
It is underneath the washer reservoir.
The 1997 Chevrolet Blazer OBD 2 port is on lower edge of dash; right of parking brake
The 1997 Chevrolet blazer actuator switch is located on the firewall in the engine compartment. The switch is on the passenger side of the engine compartment.
were is the heater relay on1996 jimmy?
2 door or 4 door?