What did I do?

[NHUSA]

I just got a 2013 extended cab 1500 4X4 5.3 with heavy duty front and rear suspension that is used mostly as a weekend toy.

I noticed that the ride is a bit harsher than my old 2003 5.3 Z71 off road extended cab

 

This week I needed a rental for a 400 mile trip and was offered a 2018 4X4 1500 crew cab when I told them I wanted a big comfortable vehicle.

I have to admit that it is great on the highway and if find myself pushing 90 MPH before I know it.

 

Is the ride difference due to the year, suspension, or maybe tires?

The air pressures in each vehicle is about 32 cold and 35 when heated up.