Hi guys! I'm new to this forum, I joined because my car won't move and I wanted input from other people that know what they are talking about, anyway I have a 2000 Grand Prix SE with 284k on the drive train.

one day I floored it and when the tranny shifted down it totally missed the gear and redlined, now I have no gears, I rolled it home and I went underneath and listened and right where the trans is connected to the axle there is a huge rattle, and it obviously gets more aggressive if I rev it up. Maybe it's the front axle? can someone help me diagnose this?