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Old 05-15-2011, 04:35 AM   #38
Ozz
Montana Master
 
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
Quote:
quote:Originally posted by 8e3k0

Prior to our 450 mile trip last Friday afternoon, I though I would crawl under the Monty to check the torque of all 8 axle u-bolts. These are 1/2 in diameter and fine thread and takes a 3/4 socket to tighten. All 8 were basically in the lose state!! I used a standard half inch torque wrench and applied at least a 1/2 to 3/4 turn before torque specification was reached ( 65 foot pounds). I also find this quite interesting that, with this specification on a 1/2 inch u-bolt that tells me they are only equivalent to a grade 5 u-bolt ( 45 to 70 foot pounds torque) not grade 8 ( 100 to 120 foot pounds torque). Again compared to automotive industry, RV quality is lower. Tonight I am going to crawl under there again and retorque to see if there has been any change after our trip. I am sure that later on as we travelled without the retorque application we would have encountered a misaligned axle or even sheared the center bolt! I recommend to check the torque on all those axle u-bolts!! Ellis
Good post, worthy of a Bump.

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