it appears as though something is missing under the hood on the drivers side mounted to the wheel well...there are two plugs just sitting there as well. my guess is its either where the compressor was for the A/C since the truck has A/C but there doesnt appear to be a compressor or power steering pump but im not sure these trucks even had power steering. oh and once again its a 1987 Ford Ranger 2.3L 5speed single cab. Any ideas? Oh and occasionally it grinds when putting the truck into reverse, normal or not?