Fstmvrerik
Salina, Ks.
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After reading a lot of information in regard to weights and towing on this forum I was crawling around my F350 srw looking at weight ratings for the various components on my truck. I have 3750 per tire, and 3640 per rim (both aftermarket). My heaviest scale ticket shows 6120 on my drive axle, which is under the 7280 weight rating of my rims: when you think about the pounding that happens driving down the road, how often does the weight exceed the rating of the rims?
I have broken several rear rims and 1 front rim over my lifetime, but I have chalked them up to when I de-bead tires, or rock strikes doing stupid stuff driving to places probably above the trucks paygrade.
Now wondering if highway travel and heavy trailers could be part of the problem. How frequently do rims fail?
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carringb
Corvallis, OR
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I cracked 2 rims as well. Both were Alcoa dually wheels, but I was regularly overloading them by about 500 pounds each. No doubt the overweight condition was a factor, but I also travel on a lot of rough terrain.
I wouldn't worry about dynamic loading. That's already factored into the engineered ratings. But I never realized the rating on my Alcoas could be an issue, because the weight rating was inside the rim on the tire side, so I never saw it until I cracked one and had the tire off.
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Old-Biscuit
Verde Valley
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Other than some serious off-road/rock climbing I have never broken a rim, truck or trailer
Have bent one rock crawling when I slip down but didn't break the tire bead
But then I don't run aluminum rims.....steel only
Is it time for your medication or mine?
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valhalla360
No paticular place.
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The rating is based on dynamic loading...so they already have you hitting normal bumps.
Now if you hit a curb or rock...or you have a blow out and the rim hits the pavement hard all bets are off but a higher rated rim is unlikely to help.
Just running down the road nothing unusual, I've never heard of a rim failing (not that you should overload them).
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BenK
SF BayArea
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Agree...Dick Cepek taught that with my first purchase from him. Wanted alloy wheels for the dune buggy and called him (he used to advertise in the back of one of the off readers magazines
Then for the 1973 K5 Blazer, ordered the delete back to min stock tires and wheels...drove down there as a breaking and new tires/wheels. He remembered me and we talked about alloys again. Decided on steel after all of his cautionary points described me.
Alloys crack when they struck boulders at slow, crawling speeds. Steel will bend and hammer it back with a ball peen hammer.
Old-Biscuit wrote:Other than some serious off-road/rock climbing I have never broken a rim, truck or trailer
Have bent one rock crawling when I slip down but didn't break the tire bead
But then I don't run aluminum rims.....steel only
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Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
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ferndaleflyer
everywhere
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I have been driving about 65 years and have cracked 1 aluminum wheel and it was on my Mercedes years ago. Trailers, DP, Cs, Bs, all kinds of cars and trucks rode hard and put away wet----1 wheel hit a deep pot hole!!!
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twodownzero
NM
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There's plenty of stuff I spend time worrying about. This isn't it. The wheels are much stronger than the tires around them.
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Grit dog
Black Diamond, WA
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twodownzero wrote:There's plenty of stuff I spend time worrying about. This isn't it. The wheels are much stronger than the tires around them.
Good to see ya back!
And an unexpected response from the chief of the weight police!
Have you been enlightened?
"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.
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wing_zealot
East of the Mississippi
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twodownzero wrote:There's plenty of stuff I spend time worrying about. This isn't it. The wheels are much stronger than the tires around them. That's exactly what I was thinking also, but the OP has already broken 3 (or more). That is beyond an anomaly.
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pitch
NY
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wing_zealot wrote:twodownzero wrote:There's plenty of stuff I spend time worrying about. This isn't it. The wheels are much stronger than the tires around them. That's exactly what I was thinking also, but the OP has already broken 3 (or more). That is beyond an anomaly.
Some folks can destroy an anvil with a rubber mallet!
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