Lippert spec'd frame list
Which companies that use Lippert's frames & have their frames made specifically for their 5th wheels. (not a standard Lippert frame) 1)DRV 2)Cedar Creek 3) 4) 5) etc
Forum Discussion
Absolutely correct. The boxed frame raises the frequency and decreases the amount of deflection, hopefully outside of the point of annoyance. Everything has a natural resonance frequency.
