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D60 Gears

looks like the pinon walked out into the center section/arb and bound up thus causing the ring gear teeth to pop off???

it looks like teeth marks in the arb and there is only one thing that can cause that.

thats why i asked about the crush sleeve. with the added stress we add i think a spacer and the extra time to shim the pinon is key.

the pinon can crush the sleeve with tire force being applied backwards thru the axel. once it works its way loose then the pinon wants to walk into the gears instead of pull them. once it touches something ka-bamb.

did that make sence?
 
Jobless said:
Simply because I thought you trailered it everywhere...thus no real road miles to break it in.
Click to expand...

Well it is driven sometimes too. And I wanted not to have any problem so I tried to follow the guidelines. Not that it seems to have helped.
 
Hip said:
looks like the pinon walked out into the center section/arb and bound up thus causing the ring gear teeth to pop off???

it looks like teeth marks in the arb and there is only one thing that can cause that.

thats why i asked about the crush sleeve. with the added stress we add i think a spacer and the extra time to shim the pinon is key.

the pinon can crush the sleeve with tire force being applied backwards thru the axel. once it works its way loose then the pinon wants to walk into the gears instead of pull them. once it touches something ka-bamb.

did that make sence?
Click to expand...


Hip,
The pictures are from the first time it went bad. I haven't gotten any pic's of the new damage. Yes the first time the pinion was loose. Now this time I don't think it is loose but need to get the pressure off the driveline.
I'll post pictures tomorrow, doc appointment took too long.
 
New Pictures from 09/04/07 Damage

Okay here are the pictures of the current ring gear that I have destroyed. The first gear set was a Precision Gears set and this set is from Yukon.
Been talking to Tera and waiting to see what they have to say about what is happening. Hopefully it will be something good in my favor. But I am not the original purchaser of the axle so I don't know.

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It might simply be that you're overstressing the D60. A high-pinion gear isn't designed to be ran in the rear, but rather the front. So you've not much stronger in the ring gear than a low-pinion D44 (okay, so it's a little stronger - but not nearly as strong as a low-pinion D60!)

If it was me, I'd run Dana/Spicer gears, if they're available in your ratio.

And I've got a hi-pinion Dynatrack Pro Rock 60 in my YJ for the last 4 or 5 years. No problems so far, with a V8 and 37s. Moab. Rimrock. Lots of abuse.
 
TreeClimber said:
It might simply be that you're overstressing the D60. A high-pinion gear isn't designed to be ran in the rear, but rather the front. So you've not much stronger in the ring gear than a low-pinion D44 (okay, so it's a little stronger - but not nearly as strong as a low-pinion D60!)

If it was me, I'd run Dana/Spicer gears, if they're available in your ratio.

And I've got a hi-pinion Dynatrack Pro Rock 60 in my YJ for the last 4 or 5 years. No problems so far, with a V8 and 37s. Moab. Rimrock. Lots of abuse.
Click to expand...

Exatcly my thoughts tony...
 
D'oh! I shoulda looked at the pic!

So here's another question to ask yourself Wildman. Do you like the RPMs at hiway speeds? Or, is now the time to re-gear both diffs?
 
Little Red Zuk said:
5.13 Reverse rotation is aftermarket only.
Click to expand...

Yes your correct on that. Lowest is 4.56.

Here is what Tera just wrote back to me about my axle.
Hi Rick, Doug here. Checking into the history of your axle, your the third owner. And talking with Rand, we feel the combination of the V8 torque and the gear multiplication created by the stack is the problem. I think a combination of factors is causing the breakage He feels either a stronger axle like a low pinion Dana 70 or a less aggressive driving style would be the solutiion. We have had some reverse 60 R & P's break under extreme abuise. The reverse cut gears are weaker than standard cut ring and pinions. You might try going to a 4.88 ratio, it has 39 ring gear teeth where the 5.13 has 41. The fewer the teeth on the ring gear means they are bigger teeth, which adds strength. we have had no production problems which might cause an improper set up. I have to assume you are aired down when the break happens. Airing down is a double edged sword, it helps cushion shock load but it also creates traction. I wish I had a diffinative answer for you, I would also give Randy's Ring and Pinion a call and get there input if you allready hav'nt. If you need some more info feel free to give me a call or email. Thanks for your interest in Teraflex, Doug Henderson. [email protected] Customer Service/Technical Support Tera Manufacturing 801-256-9897
Click to expand...

I kinda feel like I am back in the Army and getting the BIG GREEN WEENIE!:masturbanana[1]: :masturbanana[1]:

O'well I know if I want to play I have to pay so I'll just get it fixed again.
 
The torque has little to do with it unless you had the thing bogged down against a rock/ tree or something like that. Just because there is torque available doesn't mean the gears are absorbing the torque. "Bouncing" it like you described is very bad for it though.
 

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