Broken ring gear teeth...damn

[failsafe306]

I agree with Shawn, looks like it went bouncy bouncy

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[chevymitchell]

I agree with Shawn, looks like it went bouncy bouncy

I did some bouncing around one time (Honey Badger)... broke my driveshaft clean. This was at the top of Top of the World trying a stupid line I knew better than to try. Lol. It bounced one time and snap. I thought it was the gearset at first but was relieved to see it was just the driveshaft.

Driving from the top all the way to the campsite in Moab in front wheel drive was a good time (Oh, also at night.) Lol.

 

[chevymitchell]

Are the Brawlee guys on the forum?

This picture and experience is why I will always buy a Brawlee for my rigs.

 

[Terrymo]

Are the Brawlee guys on the forum?

This picture and experience is why I will always buy a Brawlee for my rigs.

I have the Brawlee light and it’s great. I don’t know if he’s still selling them with similar products undercutting his pricing on Amazon.

 

[Snacktime]

Those look like 39 KM3s?

 

[sherpaJL]

Set-up looks ok.
This is likely from bouncing a few too many times.
That gear deflection is a real thing. Lol. Looks like a normal failure to me.

Two Cut vs Five Cut gear sets
Curious if these failures can be attributed to the machining process and the proper R&P setup of each style.

https://differentials.com/two-cut-vs-five-cut-gears/

 

[chevymitchell]

Those look like 39 KM3s?

37” KM3’s.

 

[jadmt]

I'm out here in Pueblo West, CO right off Hwy 50 if you're ever out here and need help.

I went from living in NC and calling this "Out West", too. Then I moved... now it's just Afghanistan with a Walmart. Lol.

I normally don't recommend for anyone to move to Montana but you would be welcome

 

[chevymitchell]

Two Cut vs Five Cut gear sets
Curious if these failures can be attributed to the machining process and the proper R&P setup of each style.

https://differentials.com/two-cut-vs-five-cut-gears/

Nearly everything these days is 2 cut.

Most failures are due to setup or abuse. Easily 95%+, anyway.

 

[Snacktime]

37” KM3’s.

That makes this interesting, might have damaged the crush sleeve when you took out the rear drive shaft.

 

[chevymitchell]

That makes this interesting, might have damaged the crush sleeve when you took out the rear drive shaft.

Nah, no pinion issues.

I put in an Adam’s, which was sent overnight to the KOA, and finished Moab, the Rubicon, and then drove it to Texas where I sold to a forum member at a gas station. Rented a car, drove home where I bought Bret’s rollover rig and built Pain Train.

He’s still driving it around Texas.

 

[Snacktime]

Nah, no pinion issues.

I put in an Adam’s, which was sent overnight to the KOA, and finished Moab, the Rubicon, and then drove it to Texas where I sold to a forum member at a gas station. Rented a car, drove home where I bought Bret’s rollover rig and built Pain Train.

He’s still driving it around Texas.

You wouldn't be able to tell, I had this happen on a toyota 8" diff. Only found it when trying to measure the crush sleeve with calipers trying to guess a starting point on a solid sleeve and shim.

Not sure if solid spacers are a thing on the m220.

 

[grimmjeeper]

You wouldn't be able to tell, I had this happen on a toyota 8" diff. Only found it when trying to measure the crush sleeve with calipers trying to guess a starting point on a solid sleeve and shim.

Not sure if solid spacers are a thing on the m220.

https://eastcoastgearsupply.com/i-2...cNIxnKIiy7nE8KRsBXBwYadLjxJGcik5damp9YKrfsrYr

 

[chevymitchell]

You wouldn't be able to tell, I had this happen on a toyota 8" diff. Only found it when trying to measure the crush sleeve with calipers trying to guess a starting point on a solid sleeve and shim.

Not sure if solid spacers are a thing on the m220.

I'd be able to tell, for sure. You'd either hear/feel it clunk or the bearings would be toast.

They are a thing but it's aftermarket, of course.

 

[mgroeger]

Most likely occurred from bouncing then hooking up. I had similar breakage on mine (around the outer edges of the teeth) and the shop said that typically occurs from a bounce to a full on hook up.

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