Suspension recommendation for highway

[fiziksgeek]

2014 CCSB Z71, Took a new job that requires near weekly trips of 160 miles one way (320 round trip) all highway. I am right around 118K miles, I still have the original Ranchos. Seems amazing as I have seen people complain about them out of the box, or replacing them before 30k, but for me, the ride has been fine. Starting to get a little bounce. Assuming this continues, I'll be looking for a commuter car, but for for now, I'll keep taking the truck. To make my wide a bit more comfortable, I was going to go back to set on Michelin defenders, but what do folks recommend for new shocks for primarily highway driving? I should add that I do not want to level the truck. I do tow on occasion and an OK with the stock rake. 

[CamGTP]

I've never had a problem with my factory non rancho shocks on my trucks. I don't have the AC Delco part numbers on me but I don't see why you'd not be happy with them.

 

Tires make a huge difference. Michelins are some of the best riding tires out there. I run Nitto's but the street tire all seasons, they ride great to me.

[Pearl2017]

Michelin defenders plus Bilstein shocks and the truck glides like a town car down the highway. shocks were a bit stiff new but softened up after some miles. I also part time tow so put lowering links on the rear to level and added the cheap airbags back there and they work perfectly for pulling a yuge trailer with zero squat.