83Twagon

what parts do i need to find for a 5 spd swap and from what yrs?

hi, im new to the board, i have an 83 wagon turbo automatic push button 4wd. i bought it for 200$ and its in mint cond has 94k original miles and no damage. the only problem it has is about every 6-9 months it tears up a govenor gear, has anyone else had any issues with this or know how to fix it:confused: ? i looked around the site and could not find anything helpfull. also just out of quriosity how much boost do these things push stock? this is my first subaru. im a mechanic and have been for about 8yrs but i work at a ford dealership so this subaru thing is new to me. any help would be greatly appreciated:) . thanks. tom