SuspensionMax is the Doetsch spindles. Got mine from there and they're great but ALL spindles require some grinding of your lower a-arm and freeing up the brake lines for more movement, etc. Make sure you understand what's required by reading the installation posts on the board here. All the different spindles have been covered to some extent I do believe.
The Doetsch spindles are different in that you can run stock backspaced wheels with them with no problem.
I've posted a lot on my install, but I did the rear myself and make up a custom 31 spline axle (FX4 31 spline axle with 4.56 gears and electric locker) while I was at it -- but I had "professional" help in the form of mechanic friends. Putting a lift on is definitely something you need the right tools and time for. They are NOT a simple bolt on, any spindles.