i think there will be a problem.... With 2 inch spacers you will get alignment problems. You will have extreme positive camber as well as gain a lot of negative caster. Without lowering the axle pivots down to bring the camber back in specs you will be out of luck. I have the 1" spacer and with that had to install the biggest alignment cams available and still the alignment isn't where I would like it. It is barely in the spec range. Also with the 2"spacer you will need to get longer studs for the lower spring mount. The only reason I got the 1' spacer was because the original superlift coil springs were sagging. Some lift kits like skyjacker has 2 different mounting locating holes on the pivot brkts for 4" and 6" lifts. The 6 and 4 inch lift uses the same axle pivot drop brkts. All you have to do is move the axle to the lower hole. Just my 2 cents though..