heres my dilemna. i purchased my 2001 grand prix gt four months ago for $2500. it has 190k miles right now. the car runs and is in good condition besides the tranny. overdrive is not workinv and 2nd gear is rough. i was aware about the OD issue when i purchased it and planned to deal with it later. i do 80% highway driving and only getting 18 mpg due to no OD. i have been quoted $2321 for a rebuilt swap with 3 yr warranty or 100k miles or $1608 for a used tranny with 1 yr warranty. i would like you guys opinion if the rebuild is worth it or go used or do nothing. i plan to keep the car for awhile and i do oil changes regularly.