It should be, if both are in tank pumps.
YES, They sure are and will interchange with NO problems. Direct bolt in.
Yes, the 1989 motor can be used. You will have to transfer the accessories, intake, distributor,etc. over from the 1993 motor to retain the EFI.
It is the round canister in the rear center of the engine, at the firewall.
Yes they will as long as the 99 is not the new body style.
In the oil pan
You CAN"T.
very carefully.
It doesn't have one.
inside the distributor
.356's
Check your fuses.
Should be about 5500 Lbs.