I have been building these trans for over ten years now. Just because they go for 150 shipped dos not mean you are getting a good one. 75% of the trans I take apart have damaged centerdiffs. at minimum they take 175 in parts to make them usable again. I have truly good one for 200. may have a weldable one for 130 buit would have to check on that.
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want a piece of the yellow car? (buy it)
you have to beat the blue car first
and then you have to take on the IV
my favorite quote
"if the solution is simple, God is answering"