2” ATS Heavy Duty Leaf Springs

I just added the Heavy Duty Leaf pack from ATS: https://www.autoandtrucksprings.com...vy-duty-rear-leaf-spring-both-sides-90-297hd/

So far I am very pleased with the springs. The company was very friendly I went to pick up in person but they can ship. They are a lot stiffer than the factory springs i had. I had the 3+1 recall pack but I would bottom out constantly with minimal load in the back.

I have Bilstein 5100 Front Shocks w/ OME 884’s set to “0”. The ATS springs are giving me a slight rake it’s better than the squatted look I had before. It got me a total of 2-2.5” of rear lift.

I do have slight driveline vibration in first and second gear when I take off hard. I have the ARB Carrier Bearing Spacers on order.

I also have a set of Bilstein 4600 in the back (aftermarket shocks not factory) are these sufficient for this much lift? Or do I need 5100. Do I also need to look into extended brake lines?