Rear wheel travel. New suspension set up

What does QA1 say? And what’s the spring rate on those coil overs?

Factory front travel is about 5”-5.5” from bump stop to bump stop, about 2.5” on compression. The rear was more than that but I forget the exact spec.

2” in the back would be the absolute minimum for me, you just won’t have enough compliance to keep the wheels planted on the street. Whether or not that’ll be enough room for the wheels/tubs will depend on the rest of your set up.