I am pretty sure that I will be going for the Truxxx lift kit, don't really need an adjustable height, as well as the Rancho shocks. How would I go about finding out which 9000 would fit the Gen 2?
You might have to e-mail or call Rancho to find out whether there is a RS9000XL that fits. I would do this - they may have the right one coming.
I'll speculate that the shock in the QuickLIFT has a smaller body diameter than the standalone RS9000XL or the QuiclLIFT spring has a slightly larger inside diameter than the OEM spring and the RS9000XL might not fit within the OEM spring. Pure speculation.