Ford Explorer Transmission Clutch Grind

Transmission Problem 1995 Ford Explorer 6 Cyl Four Wheel Drive 180000 Miles I Had Aclutch Kit Put In When I Had The Engine Replaced...

Trying Find Out Y I Just Have 1st, 2nd ,3rd ,5th, R, But No 4th Gear?? Its There But Don't Want To Go In! But When I Do Go To Put It In It...

My Car Started Like Revving Every Now And Then When Going In Gear But I Wasnt Reving The Engine..about 2 Weeks Later It Just Started Slowing...