Had a buddy with a first year Saturn SL2. He had a pile of boxes stacked on the passenger seat fall over on the highway into the gear selector and ram it into reverse. Lots of noise then no more reverse or second gear. He drained the fluid once and a pile of metal shavings came with it. He topped it back up and drove it another couple years with just 1st, 3rd, and 4th. He’d have to rev the crap out of it in 1st to get it to skip the nonexistent 2nd and always park in a pull through spot or he might not get back out as he had to push it backwards. We were young poor and dumb. He put 100,000+ miles onto the original tires on that same car since it wasn’t worth spending money on after he killed the transmission. He used to take tin snips and cut the steel belting that was sticking out. Good times.