It lets you lift more because the upper arm moves up farther away from the bump stops, thus you can crank the torsion bars more.

@ Alex Kogan- what lift would you say max is with the 1" spacer? 3" t-bar crank lift with the spacer? Or would that max out the CVs and tie rods too much?

'88 Raider, 33" Maxxis, 2" body lift, 10K winch