I have for sale a set of Genuine GM 4:10 gears that I took out of my '00 Firehawk that had 3.42's from the factory. I went with a set of 3.73's instead, as I do a lot of highway driving and wanted to drop my rpm's a bit while gaining a bit more performance over the stock 3.42's. I had them installed at a reputable local shop and they are genuine GM gears. They are GM part number: 26016309. They were quiet from day one and they remained quiet until the time I had them pulled out. They have been in my car for the last three years or so. I have never drag raced with them nor have I even done any burnouts. They have some easy miles on them (mostly highway). I am looking to get $85 + shipping for the gear set as well as the BRAND NEW pinion seal. The seal is the larger one for the newer fbody's (GM part number: 12471523).
PM me with any questions.
Here are a couple pics: