i have a original used gm 12 bolt ring and pinion gear set dated 10/ 68 real nice condition what are they worth now.

I sold a set recently for $150.00 if that helps...

I had a set on TC just like yours about a year ago for 75 and had no offers. I listed on ebay and the auction ended almost 300.00 That was a year ago and as you know the market is off at this time. Maybe hold on to gears till the market comes back and list on ebay.