I am about to swap a 3.42 posi w/ disc brakes from a 95 trans am to replace the stock drum open rear in my 86' z28. While I am doing the swap is there anything other upgrade or maintainence i should do in the processes? Any common problems with this swap? I have read the tech article on installing a wilwood proprotion valve, and the article on the 4th gen rear swap.

Is an aluminum drive shaft worth investing?