I'm the proud owner of a 1988 Ranger, XLT, 2wd, 2.3L, 5 speed.
The one thing I have always wondered about is this...there is a hose coming out of the firewall, rather long, on the right side (sitting behind the wheel) of the brake booster. It is a rather large diameter hose and it's the same kind of hose used for the windshield washer.
If anyone could tell me what this does and where it's supposed to go that would be totally wonderful!! This has boggled my mind for as long as I've owned the truck.