12
Step 7 – Adjust Weight Distribution
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WARNING
Weight distribution is one of the many things that reduces sway. The
operator is responsible for making other necessary adjustments to all
contributing factors to minimize sway.
Good Weight Distribution Range
Good weight distribution adjustment is achieved if your calculated weight distribution
falls between 50 — 100%. Every tow vehicle and trailer combination will be different.
Refer to your tow vehicle owner’s manual for exact ratings. Do not exceed 100% weight
distribution. (Figure 25)
Under or Over Distributed
Under Distributed means less than 50% weight
distribution after installation (or less than the
minimum directed by the tow vehicle owner’s
manual), measured at the front axle of the tow
vehicle. In this case, there is too much weight
on the rear axle and not enough weight on the
front axle. This can cause a loss of steering and
braking control with reduced resistance to trailer
sway. To correct under distribution, add more spacer washers to the hitch head or raise the
L-brackets.
Over Distributed means more than 100% weight distribution return (or more than the maximum
directed by the tow vehicle owner’s manual), measured at the front axle of the tow vehicle. Over-
distribution can remove too much weight from the tow vehicle’s rear axle. This can cause a loss
of traction and control causing jack-knifing, especially in slick road conditions. To correct over
distribution, remove spacer washers from the hitch head or lower the L-brackets.
Make Weight Distribution Adjustments
1. Use the tongue jack to raise both vehicle and trailer.
2. Unload and remove the spring arms.
3. Unhitch the trailer, then change the number of spacer washers and/or the position of the
L-brackets.
4. Hitch the trailer again and engage the spring arms.
5. Retract the jack so the hitch is carrying the trailer weight.
6. Measure the front fender and enter this new distance on line C of the weight distribution
calculation table.
Good Adjustment
150%
0%
50%
100%
Over Distributed
Under Distributed
Figure 25
Figure 26
