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Quantity
1
Description
Get the best of both worlds with RoadActive Suspension® Mega-Duty — our strongest suspension upgrade engineered for heavy payloads, serious towing, and demanding truck applications.
Mega-Duty strengthens your factory leaf springs by up to 5...
Reviews
5.0
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2025 Ford F250 King Ranch. I haul a 12,000# 5th wheel camper that almost maxes out the payload of the truck. The stock leaf spring squat 4 inches and it would porpoise with dips in the road. The squat is now about 2 inches and the front is not pointing up. The porpoising was greatly reduced. The empty ride was also improved and with the coil spring's natuaral behavior, it does not feel rough. I installed the mega spring version because my traler's heavy weight and nearly maxed out pin weight of my truck. They are not cheap, but cost much less than switching to a 1-ton truck.
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Anthony · June 21, 2026
I am really pleased with the quality and the improved ride/handling