Q: I'm buying a 1998 mitsubishi eclipse gsx project car. it has auto tranny as it sits now. im wondering what i need to have make a auto to manual tranny swap possible.
A: Transmission, transfercase, clutch master cylinder & lines, pedals, shifter & cables, rear differential (different gear ratios for auto & manual). If you get a 95-96 tranny, get a 91-96 transfercase; If you get a 97-99 tranny, get a 97-99 transfercase. The front differential & transfercase have different gear ratios. The transfercase bolts up differently to the auto & manual trannies. Get a good clutch & pressure plate right away so you don't have to do it when the clutch goes out from a couple hard takeoffs. Get a good transmission from Shep, TRE, or Jacks Trans. Don't make the same mistake as I did getting a 'cheap' one, those aren't so cheap anyways and will be trouble.