On my first 5er in 2000 pin height was to low after I installed a Trail Air pin box.
I then had my springs put on top of axels, then had to raise my hitch one hole then all was level.
On my next 5er 2004 I moved springs to top of axels myself, I did this while in a camp ground in Ca. I have a friend who has a portable welder, needed to do the job.
Took about 3 hours and all went well.
I have towed about 40,000 miles in two 5er with spring over axles and no problems. We have been West to East and back 4 times and gone on North and South trips all around the country.
Larry & Kathy
Fulltime June 2000 SK#82498
Our Home is Where we Park IT
International 4700 Low Profile 530 power:Full Air Ride
Prowler Regal AX6 :Trail Air pin box/spring over axle: Verizon internet: 2 Verizon cell phone