[Tx Firefighter]

I have lowered them 6 in the back without shock extenders and driven zillions of miles. They ride okay I guess.

But, the first time I went all the way and got shock extenders for a truck, I noticed a huge improvement in ride quality compared to previous 6 inch lowered trucks. Now, I always spring the extra scratch to get the extender kit. It's worth it once you have felt the difference in ride.