Spray the old bolts well with a good penetrating oil, then go have another cup of coffee, spray them again, mow the lawn, and THEN start to the project.
The first set I installed turned ftom a 30 minute job to a 6+ hour job when an old bolt sheared flush with the frame. When I bought the new truck, this was my first modification, after floor mats. Much easier working with new, not-rusted bolts!
Be Safe, and Everyone Goes a Home,
2014 RAM Laramie 2500 w/6.7L Cummins Diesel and Automated Safety Hitch
2016 377RLBH Jayco North Point
300W of Suntech Solar w/Rogue MPPT Controller & Xantrex 2000W PSW Inverter