| Weight Distribution Hitch
funkill Here is a post I did about setting up my dual cam Reese. Setup Disable any auto ride, auto leveling etc system on your vehicle and deflate any air shocks to minimum pressure. This is the only way you can set it up and let it do its job properly.
The best way to set up the Airstream is with scales.
You need to go to a CAT Scale and expect to spend some time.
First you must adjust the ball height (up or down) to make the weight on both axles of the trailer the same (yes weigh each axle separately). Make a reference mark on the tongue (Take a piece of masking tape, stick it on the tongue if you don’t want to mark on the tongue with the magic marker and put a line on it parallel with the ground. When the weight on both axles are the same plus or minus 100lbs measure the distance from this line you made to the ground while on the scales). Pull off the scales and find a flat hard surface to park. This is what your tongue height must always be when you are on a flat level surface. Next adjust the spring bars/trunion bars until the weight on the front axle and rear axle of the tow vehicle is the same with the tongue height noted before.
Then tweak the number of links under tension, angle of the ball mount and ball mount position on the drawbar until the weight on all four axles is within 100 pounds of each other AND the line on the masking tape is at the distance from the ground is the same as the tongue height as measured above.
The change in overall handeling is dramatic. If you have the dual cam straight line setup: Lastly pull straight for at least 50 yards. Loosen the u bolts on the arms (two u bolts per side, they will usually self adjust with a bang). Re tighten the nuts on the ubolts. Your ready to go.
Remember:
1. Equal weight on the two trailer axles is the first and most important consideration reguardless of appearance. There is no equalizer link between the front and rear axle so the ball height is what determines the load on each axle. It must be the reference height determined above when finished no matter how many times you have readjust the angle of the ball mount/position of the ball mount on the shank.
2. Equal weight on all four axles is the best setup for braking and stability. This may not be attainable so get as close as possible.
Put your heavist toys in front of the rear axle of the pickup truck (between the front and rear axle).
3. The truck and trailer might be a little off level when the weights are right. This is caused by the different ACTUAL load capacity of the old axles on your trailer (after several years they get tired, mine are).
4. Use the lightest spring bars you can get away with. There should be 1 to 2 inches deflection from rest (on the spring bars) to be best to attain the reference mark height and equal weight on all axles. My tongue weight is 850 lbs and I use 750 lb bars. These spring bars provide a flexable link between the truck and the trailer. I learned years ago that unless you provide a flex point between the trailer and the truck, if not, the trailer or the truck will find one on its own and I guarantee you will not like it.
Beginner |