I have this same set up and my vehicle drives great. The nice thing about the Bilstein shocks is they give your 4Runner a sports car like handling while still giving you good off-road performance. When you brake hard you don’t get any nose dive and almost no swaying when cornering. The only drawback is the Bilstein shock give a firmer ride.

With the heavy spring you bought, don’t install it until you add your bumper. It will make leveling your truck harder. I did this before I got my front bumper and my nose sat too high.

If your bumper weight is between 100-150lb get the 650lb pound spring. My front bumper is 140lb and Bilstein recommended a 700lb spring. It was too much and I had to drop it to 650lb and it’s fine now. Anything under a 100lb I think you can use 600lb spring which is for stocks bumpers and raise it a little.

Also I have the TRD pro which already came with the 2.5 inch lift.

If you lift it you will want to lift your pan hard rod for a better ride. This video will explain why. Do Not Lift Your 4Runner ... Overland Build Recommended Geometry Fix - Do Not Lift Without This - YouTube