worn outdrives

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Old 01-06-2013, 10:39 PM
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Default worn outdrives

what kind of ill handling effects will worn outdrives on the balldiff cause?

mine are showing wear and just curiouse how does it effect overall driveabilty..

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Old 01-06-2013, 10:44 PM
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Default worn outdrives

It will cause the rear suspension to bind when on power
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Old 01-06-2013, 10:56 PM
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If they get too worn you will start breaking dog bones too. If they are bound up under power and you compress the suspension things can go bad in a hurry.
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Old 01-06-2013, 11:06 PM
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my truck has gone from tq'ing and winning to becoming very inconsistant and the outdrives are the only thing i can find needing replaced. this is on the same track/setup. it has been loose in the turns when it used to be almost glued to the track.
just wondering if this is a symptom of the wear.

Last edited by turners dad; 01-07-2013 at 06:09 AM.
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Old 01-07-2013, 03:29 AM
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Is the diff turning smoothly?
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Old 01-07-2013, 04:45 AM
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Originally Posted by turners dad View Post
my truck has gone from tq'ing and winning to becoming very inconsistant and the outdrives are the only thing i can find needing replaced. this is on the same track/setup. it has been loose in the turns when it used to be almost glued to the track.
just wondering if this is a sympton of the wear.
This is exactly what will happen with a worn outdrive. Change them and start tq'n again.
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Old 01-07-2013, 06:15 AM
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Originally Posted by Johnnysplits View Post
Is the diff turning smoothly?
It needs a re-build, it got loose and barked in one corner throughout an entire heat

Originally Posted by ohiostatechamp View Post
This is exactly what will happen with a worn outdrive. Change them and start tq'n again.
Thanks that is what I was hoping it was, seems like it would effect the braking and power causing it to "pop the clutch" to that wheel causing the inconsistentcy. Looks like I will have a spare diff for backup in the pit box...
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Old 01-07-2013, 10:24 AM
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Save the female half of your worn outdrive as a tool for sanding your new diff rings. Your fingers will thank you.
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Old 01-07-2013, 10:29 AM
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Originally Posted by SinCityMedic View Post
Save the female half of your worn outdrive as a tool for sanding your new diff rings. Your fingers will thank you.
That's a great tip, I used it last night with some 200 grit paper and I have some 400 ready to go next.
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Old 01-07-2013, 10:35 AM
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Originally Posted by turners dad View Post
That's a great tip, I used it last night with some 200 grit paper and I have some 400 ready to go next.
I go to 1000 or 1500 grit. Go to 800 grit at least.
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Old 01-07-2013, 10:39 AM
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Originally Posted by Yeti AS3 View Post
I go to 1000 or 1500 grit. Go to 800 grit at least.
Will do, and I have some electronics spray too wet sand with also
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Old 01-08-2013, 05:21 AM
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Can you aslo just flip the outdrives from left to right in the diff as you rebuild it? That would get it to start using the other side where it is not worn out for a while.. Will buy some time without buying parts.
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Old 01-08-2013, 06:20 AM
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Just turning the outdrive around will not work. When you try to coast the dog bone will fall into the notch. that will cause the car to feel like it is on ice as the suspention has locked up. Besides, with the amount of time it takes just to get to the diff. why not just change it.
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Old 01-08-2013, 10:35 AM
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If you have access to a blow torch you can case harden the outdrive a. They last much longer. Heat the part where the dogbone rests until red hot then quench in water.
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Old 01-08-2013, 04:09 PM
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Originally Posted by SinCityMedic View Post
If you have access to a blow torch you can case harden the outdrive a. They last much longer. Heat the part where the dogbone rests until red hot then quench in water.
Oh baby, I have a blow torch! Have you done this with sucess? Anyone else try this trick?
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