I am trying to put my 140 together. Its been down for a long time and I cannot get bracket M42857 to fit. It holds the front H1 tubes in place .Mine just does not want to fit. do I bolt it to Right cowl stand AM 31216 or what. Tractor has late muffler support M 44097. Serial # 15204 . The tubes line up with disconnects and nothing does not look bent . Thanks Lumpy