There are some variants of F350 CCLB that come with hydroboost brakes instead of vacuum boost. That could account for the difference in feel. They don’t have less stopping power, the pedal feel is just different.
I know I’m linking to another forum but here is a thread about an SRW, CCLB, F350, 7.3L with hydroboost brakes.
2017 - 2022 Super Duty - Which trucks get hydro-boost? - Just wondering which trucks get hydro-boost brakes. I thought my 7.3 350 SRW was coming with vacuum assist. But it came with hydro, and Ive been trying to figure out what determines which trucks get it since. I thought it was DRWs, but...
www.ford-trucks.com