Yes it does. unless someone took it off.
Yes it had 1 from the factory.
Drive to an exhaust shop
its goes to the smog pump which pumps oxygen into the cat to help the burning process and increase the cats life
When new they got about 20MPG I (this info is from an 84 suburban half ton 2WD, a 93 half ton 2WD ,83 blazer and an 84 half ton pickup 2WD.
Electronic carb, air injection exhaust manifolds, air injector pump, EGR valve, purge canister and valve, catalytic converter......I think that's pretty close to all of it.
simple answer is no.
No.
YES they are the same.
YES.
Can't find transmission dip stick for a 84 custom 2 Chevy
don't know but... Cal king = 72 X 84
Can a 84 Chevy caprice classic fit on a 83 Chevy caprice classic