I just got a RAS 3611Y kit for my supercrew 2017 4X4 off-road XLT, debating whether to go with the black disc or white disc. TT has about 850 tongue weight, opinions?

 

I have a similar tongue weight. I'm planning to remove my 4x4 rear spacers and setting the RAS in between the white / black disks. Will see how that goes. Overall I don't really want the rear of the truck to be any higher if I can avoid it. I may also be installing hellwig sway bars at the same time, haven't decided yet if I will do them at the same time or wait to see how the RAS feels on its own.