WIW Dana 60
I have been parting out trucks on the side for years to pay for my car builds. I would go as high as $150.00 if, and only if:
1. It was the ratio you want
2. It was sure-grip
3. It was straight.
If you get the correct years it will already be 30 spline.
Conversely, I have an old 4.10 geared Dana 60 that I would sell for $50.00. But, it has the wrong ratio for me, and course spline side gears.
Just a thought, ROB