the rear is the same at 21 and fronts are close to the same, 1/4 inch lower on drivers side at 23.5 IIRC
I have actually done 3 alignments since I put my lift on. Every 6K I have it checked, and am going in tomorrow to have it checked too. (no i do not pay everytime, Hibdon Tires Plus will guarantee your alignment for 12months or 12K and if you hit something you take it back in and they fix it no extra cost or anything)
Now when I reverse I get a grind/knock under the jeep. It is not a constant noise but everytime I accelerate fast in reverse.
Hibdons said fixing bad u-joints will help shake and they are bad! Fixing them today...
And another leak possible while replacing u-joints.
This is where the shaft connects to the rear axle. Is this fixable, or is this just b/c the u-joint busted and looks like it is broken, when it is actually not...

Thanks