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Old 03-21-2018, 12:56 PM   #165
Brand: Thor Motor Coach
Model: Gemini 23TR
State: Florida
Posts: 58
THOR #9606
I have not tried SumoSprings, but I have used Timbren products on my Silverado 3500HD. Night and day driving experience when towing my 18000lb fifth wheel.

I realize that's not the same as the Transit 350HD, but the effect is the same. Under load, those Timbren "springs" softened the road, leveled my truck and trailer a bit more, and gave me a confident feel when driving.

When I shopped for a suspension support upgrade that was cheaper than air springs, I looked at Sumos. They just don't look durable......but that just my opinion.

2017 Gemini 23TR
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