My 63 k10 daily driver. Ive towed a bunch of cars (heavier than I should have) and load it up all the time. The 454, new power brakes, and brake controler do help. Hopefully it will be getting a makeover soon so I dont beat it to death. So many other projects though.
Did you do the 454 install ? Just curious as I'm working on a 66 C10 myself.
1966 C-10 Short Stepside HiPo Step-by-step ~ and on-going resto build in the Project Journals