How to choose correct Leaf spring rating?
I just upgraded axles from 3500 tandem to 5200. Trailer parts supplier say I should use 2900 lb springs to match the new axles for a total of 11,600 lb capacity. This doesn't sound right to me because...
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I am no suspension expert, but I would not want to over spring an RV, that could cause extreme rough ride, or bounce. I don't know your situation, but don't understand the big bump in axle size? It seems to me an upgrade from 3500# to 4400# would have been enough.
My 5200# axles and springs give my FW a GVWR of 12,110.
I think you are right to go with the 2400 lb spring set, rather than the heavier 2900. Maybe someone with more knowledge of RV suspension can better advise, but I would not go with springs that are way over kill.
Many light FWs come with 4400# axles, and have a GVWR of near 10,000.
Jerry
My 5200# axles and springs give my FW a GVWR of 12,110.
I think you are right to go with the 2400 lb spring set, rather than the heavier 2900. Maybe someone with more knowledge of RV suspension can better advise, but I would not go with springs that are way over kill.
Many light FWs come with 4400# axles, and have a GVWR of near 10,000.
Jerry
