I mounted 2x4s across the trusses to reinforce, then spanned the 2x4s with strut so the lift could slide back and forth. I haven't heard a single squeak. Good luck finding a new boyfriend.
Sorry for the late response to everyone! I purchased through Bob Bell in Glen Burnie in May 2021 and got it in June of 2022. I love this truck. I'm asked all the time if I would buy it again based on my experience over the past year. My answer: Absolutely.