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Old 08-21-2013, 12:07 PM   #1
Join Date: Dec 2010
Posts: 70
Axle alignment...help!!

We have a 2010 Montana, with Mor/ryde suspension from the factory. Recently had a blowout on the right front axle tire, at 65MPH. Lucky no damage to the trailer, & about 2 miles from Camping World, limped in & put on a new tire. Continued about 1,100 miles home. Noticed bad tire wear on the outside of the left front axle tire, same axle as the blowout, opposite side. Measured the space between the two tires on both sides, & found the space 5/8" bigger on the left side. Dropped a plumb line fron the king pin & made an X on the ground, measured from each tire on the front axle, & the left tire was about 1/2" closer to the X. Decided to install a wet bolt kit, possible worn bushings & shackles. After the install, towed the rig about 5 miles, & did the measurments again, no change, although the old parts were a bit worn out. Took the trailer to a truck spring shop that does alignment, about a 25mile trip each way, they set it up on the machine, & said the front axle was bent, gave me the printout with the results. I took the rig back home & called Dexter, they told me how to get the #'s from the axle, & would ship a new one. While under the trailer I decided to measure again. I measured the space between both axles at each end, it's now the same, as is the space between both wheels, and the distance from the wheels to the plumb line mark. I have since jacked each wheel up & checked the U bolts, all tight. Checked the center pin on each spring pack, & wire brushed the welds, & checked for cracks on the spring hangers, all good. The shop didn't do any adjustments, only checked the alignment. Something moved under there, & I'm out of ideas. Sorry for the long story, just wanted to cover everything I have done to this point. Any new Ideas.

2010 34' Montana 5 wheel, pulled by 2009 dodge 3500 diesel, 4x4.(gone), 2016 Ford F-350, SRW, 4X4, 6.7 Diesel.
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Old 08-21-2013, 06:17 PM   #2
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Join Date: Aug 2001
Location: North America somewhere
Posts: 13,897
Suspension moves more than we think. The only way to setup the trailer to measure for alignment is to insure the axles are sitting perfectly straight before measuring, that is to drive in a straight line for a few rig lengths, or raise the 5er off the ground and sit it back down to allow the axles to find "center". I would accept the alignment shops word and closely monitor tire wear (across the entire tread) for the next few hundred miles with a tire depth gauge.
I once broke a spring alignment bolt and the spring leaves slid back some even though the U-bolts were very tight. Our 5er had MorRyde suspension.

2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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Old 08-24-2013, 02:47 PM   #4
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Join Date: Aug 2009
Posts: 163
The 1st thing to consider is a weight problem in the fiver, and it usually shows up by wearing on the inner sides of the tires as the axles bend downward. Since your tires are wearing on the outside of the tread, It looks like you're on the right track (so to speak) by checking alignment. Is Dexter going to send you an axle without charge? It should be the fix to your tires blowing out.
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