How does this tire and axle look? - Page 2 - Fiberglass RV

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Old 05-29-2016, 06:20 PM   #15
Senior Member
Name: Russ
Trailer: Scamp 16' side dinette
Posts: 567
I had to deal with changing the lug pattern on the spare tire, but I can't recall what I did. There were some all thread studs that protruded through the shell. I suppose you could just redrill as necessary, and patch the old holes. There is some wood structure inside that supplies support. Alternately you could bolt a flange to the existing studs with a short tube welded to it and a flange to fit the new wheel lug pattern welded to the tube. That would be more costly, but eliminate the holes to patch.

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Old 05-29-2016, 07:07 PM   #16
Senior Member
Name: Russ
Trailer: Scamp 16' side dinette
Posts: 567
Originally Posted by floyd View Post
Up 22 dgrees is OEM on Scamp 13s. Negative camber is the result of rubber fatigue(normal wear over time). A spindle is much more likely to break than bend, and in the unlikely event it did bend,it wouldn't roll much more than out of sight..
I was using the term "spindle" to mean the control arm/axle assembly. I speculated that an axle that had worn out rubber would ride harshly and not absorb bumps. The combination of worn out axle encountering a pot hole would bend the control arm decambering it. Most metal will bend before breaking unless is is glass hard or a casting. I assume the control arm is a forging, not a casting, so could bend.
If the torsion bars are not supported at the center of the axle, the tips would sag as the rubber elastomers age allowing some decambering that the outer bushings could not resist due to leverage. That is probably what you speak of. Bushings at the center could stop the decambering effect of rubber wear, but the axle is probably done in by then anyway!

I've been informed there are no bushings, just rubber. That would explain plenty of decambering with rubber aging!

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