A, B, or C cup?

[Stanley Crewell]

Interesting choice of cable protection there. Metal flexible conduit used in buildings?

It's actually the metal sleeve that came with the lights. About 10 inches long with the wire sticking out a few inches longer for you to wire however you like.

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[jrollo7]

D+ cups only.

Actually, that's a lie. I'll take any boobs.

 

[jrollo7]

Now that I got you to look at the post I have a question about why my tires appear to be cupping. In the attached photo you can see the inside of the tire on every other lug is warm to a much greater degree. Just noticed this on the spare after the last rotation because with tires on the vehicle you can't really see the inside well. Not sure how long it's been going on and the tires have 36,000 miles on them with a five tire rotation every 5000. Vehicle goes dead straight down the road with no vibration and haven't noticed an increase in road noise possibly because it has happened over time. Any info is appreciated.

B B

 

[Fordfreek]

If you didn't have the alignment checked after the winch install , I'd say it squatted the front enough to give it toe out or take away some toe in. Have an alignment done. For that mileage and doing 5 tire rotation, that looks excessive to me.

 

[BigBlueBronc]

Ha

Now that I got you to look at the post I have a question about why my tires appear to be cupping. In the attached photo you can see the inside of the tire on every other lug is warm to a much greater degree. Just noticed this on the spare after the last rotation because with tires on the vehicle you can't really see the inside well. Not sure how long it's been going on and the tires have 36,000 miles on them with a five tire rotation every 5000. Vehicle goes dead straight down the road with no vibration and haven't noticed an increase in road noise possibly because it has happened over time. Any info is appreciated.

Have you had front camber checked. Also running at lower pressure doesn't help. Alignment shop should be able to check wheel geometry.

 

[4-Play]

 

[broncobase1]

36K miles --

Per ChatGPT (uploaded your pic), this is what it spit out.


Most likely causes (in order):

1. Too much negative camber
   • Common on Broncos, especially Sasquatch or lifted/leveled setups
   • Causes the inner shoulder to carry most of the load
   • Often drifts after lifts, wheel offset changes, or suspension settling
2. Toe out of spec (often toe-out)
   • Scrubs the tread instead of rolling it
   • Accelerates inner-edge wear
   • Combined with camber, it will eat the inside lugs fast
3. Aggressive tread + IFS = lug chopping (“every other lug”)
   • Seen on KO2, Ridge Grappler, Duratrac, Baja Boss, Territory MT, etc.
   • Slight alignment errors cause the tread blocks to oscillate under load
4. Underinflation as a contributing factor
   • Especially if trail pressures are run too long on pavement
   • Increases tread block flex, worsening the uneven lug wear
5. Possible suspension wear (less common unless higher mileage)
   • Upper control arm bushings, ball joints, or tie rods can exaggerate camber/toe issues

What should be done:

• Get a full 4-wheel alignment ASAP
  • Ask for a before/after printout
  • Camber and toe matter more than caster for this issue
• Verify street tire pressures (don’t run trail PSI on pavement)
• Continue 5-tire rotations every ~4–5k miles
• Inspect suspension if alignment won’t hold

Bottom line:
This wear pattern is classic negative camber + toe combined with aggressive tread, not a rotation problem. Once it starts, rotation won’t stop it without fixing alignment.

With 36K miles and it drives straight I wouldn't do anything!!

 

[Dirtrider]

Now that I got you to look at the post I have a question about why my tires appear to be cupping. In the attached photo you can see the inside of the tire on every other lug is warm to a much greater degree. Just noticed this on the spare after the last rotation because with tires on the vehicle you can't really see the inside well. Not sure how long it's been going on and the tires have 36,000 miles on them with a five tire rotation every 5000. Vehicle goes dead straight down the road with no vibration and haven't noticed an increase in road noise possibly because it has happened over time. Any info is appreciated.

I see similar tread wear on my '22 (7MT) non-sasquatch Black Diamond at 33,000 miles (General Grabber AT, 265/70-17), rotation about every 5k miles. Alignment is good and it tracks straight. Mine have more tread than yours but wear pattern is similar. I just assumed it was normal for this tread pattern. Aside from more noise than when new, I'm not too worried. I've also towed this behind my motorhome for ~12-15k miles and been waiting for these to wear out so I could put 33's on it

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