So I change the oil and finally figure out the vacuum leak issue when I took it for a test drive the car will literally just stay in nutral I put it in first gear and I hear a nasty grinding noise. Im thinking tranny pump not sure yet. SO heres my next question would it even be worth it to put another tranny in my GP the chassis has 298,000 miles and im debating on wether I should buy another Grand Prix preferably a GTP or just put a better transmission in mine. Oh and I know the GTP trans is more stronger than the typical GT would it be possible to swap a GTP transmission on my L36 or would it not bolt up? and final question how much do you guys think I could get a used transmission for?
