Solution to Fix Porpoising Fastway 1,000 lb Spring Bar Weight Distribution

Published 10/19/2023

Products Featured in This Question

Fastway e2 Weight Distribution w/ 2-Point Sway Control - Trunnion - 10,000 lbs GTW, 1,000 lbs TW

(169)

$625.00

Replacement Trunnion Spring Bars for Fastway e2 Weight Distribution Systems - Qty 2 - 1,200 lbs TW

(39)

$317.47

Question:

I have the Fastway 10,000/1,000 bought a year and half ago. I have a 2019 F-150 with Max Tow package. The truck and trailer sit very level, it tows well however I get proposing on bumps. Any suggestions for this.

asked by: Gordy G

Expert Reply:

If the trailer does not have enough weight on the tongue relative to the weight of the trailer (ideally between 10-15%) then you can experience issues with porpoising. A weight distribution system will generally fix most porpoising issues as it helps better distribute the load more evenly but if the springs bars are too weak they can flex more and give in to porpoising. The best solution would be to rearrange weight on the trailer but stiffer springs bars would also help to alleviate some of the porpoising issues.

To upgrade the spring bars on your # FA92-00-1000 to a higher capacity you would want the part # FA92-01-1299 for a 1,200 lb spring bar set.

expert reply by: Jameson C