I've still got the whole 307/3 speed/D20 laying around from my Blazer and I can't seem to find soemone locally who'll pay for it.
Anyone know definitively which ratio the Blazer Dana 20 had? After a quick search, most sources state it has a 2.00:1 low range, while the NP205 is a 1.96:1. Doesn't seem like there would be much gain in simply switching t-cases because either one is a strong, all gear driven case.
Of course, if you were going with some sort of a doubler I could see the trouble.