View 1 Photo View 0 Videos 1999 Kalyn Siebert 48FT Tri Axle Extendable Flatbed to 70FT At auction Aug. 6 Very rare find!! 1999 Kalyn Siebert Tri Axle 48FT collapsed / 70FT fully extendable high flatbed trailer. sliding winches and straps, solid deck. Perfect for truss hauling, telephone pole... Lot Number32136-47-1ConditionUsed MLS Number14526373CategorySpecialty Trailers Last Updated8/6/2026 LocationPine Bush, NY, US Listed ByGovDeals, Inc. (833) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info