It has 1 fuel filter up in the drivers side frame rail behind the cab. You will have to slid in under the truck to see it.
Automatic? Probably the 700R4. The 700R4 was replaced by the 4L60-E in 1993 in the 1500 series.
YES.
A 1993 Chevy does not have a carburetor, it is fuel injected.
4L60E transmission.
1993 chevy 4.3 v6 1500 truck temp gauge inoperative,
inside the distributor
225/75/15
Should be about 5500 Lbs.
4L60E automatic with overdrive.
Yes.
YES
Most likely you have a flasher that needs to be replaced.