[COBALT]

Wow, that really depends on a lot of factors. What is your current setup? How will that setup change based on your project?

More importantly - what will your pinion angle be at ride height when all of your chasis work is done? Chances are you'll have to fab a driveline to fit your specs (using a driveline shop) when all of that work is starting to take shape later (when you have the transmission, cross members, and differential set up in the modified frame). I haven't personally done that, but I've seen a lot of pros explain the process, and being an engineer it makes perfect sense.

You may not want to commit to something like this yet. I think this is a driveline for a manual transmission. It's completely different than an automatic transmission setup. The shafts are thicker, dimensions a bit different, slip yoke is wrong, and the carrier bearing fits a different cross member.