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"How To Properly Build And Break In a Ball Differential and Slipper Clutch"

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"How To Properly Build And Break In a Ball Differential and Slipper Clutch"

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Old 01-24-2012, 10:04 AM
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Thanks for the info man! While I was building my diff for my new 22 the instructions were not explained very well. Your videos helped out alot. They had way more info in them then the manuals do.
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Old 01-24-2012, 07:49 PM
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what a great thread. soooooo helpful.
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Old 02-01-2012, 09:56 PM
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thanks alot for making this tutorial buddy.
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Old 02-03-2012, 01:16 PM
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Originally Posted by RShockley View Post
Thanks for the info man! While I was building my diff for my new 22 the instructions were not explained very well. Your videos helped out alot. They had way more info in them then the manuals do.
Yes that was not to clear and this thread helped alot!!!
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Old 02-05-2012, 07:18 PM
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Default Diff rebuild thread!

Most helpful thread I've come across in a long I while. Thanks for the knowledge!
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Old 02-06-2012, 08:14 PM
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I have a question. Are the thrust washers supposed to have deep grooves in them? I got some old Robinson Racing Diffs for my RS4 and the washers have very deep grooves in them but they look like they are meant to be there... I have rebuilt the diff using the same balls and sanded rings flat but it still feels gritty... So im wondering if it is the thrust washer groove or if I just need new balls.

Should I try flipping them over and just using the flat side for the thrust washers?

Thanks any help would be awesome.
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Old 02-06-2012, 08:34 PM
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If there are grooves in the washers they are worn and need flipped or replaced . Most likely you will need new diff and thrust balls as well .
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Old 02-06-2012, 08:57 PM
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Originally Posted by Briguy View Post
If there are grooves in the washers they are worn and need flipped or replaced . Most likely you will need new diff and thrust balls as well .
Here I got a quick picture of it...

Is that whats making my diff gritty?
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Old 02-06-2012, 09:00 PM
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A combination of that and the balls .
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Old 02-06-2012, 09:03 PM
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Originally Posted by Briguy View Post
A combination of that and the balls .
Cool TY I will try flipping them over tomarrow and see if these balls still have some life in them

I just wanted to make sure it wasn't a raceway in the washer that was supposed to be there.

Thanks again!
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Old 02-19-2012, 09:16 AM
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Great thread guys, I followed it up until getting the diff ready, but when I tried popping the throttle to set the slipper it kept slipping. Checked diff again and it had loosened up. Tried to tighten it, but turned it right down and it was still loose, are the balls gone?
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Old 02-22-2012, 10:02 PM
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Great video mines on point!!!!!
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Old 02-24-2012, 10:05 AM
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I followed the whole process, but the first time I checked my slipper, my diff slipped instead, so I tightened it (the diff) down some more, checked it again and got the slipper to slip properly.

The diff only slipped the once, and it's not like it was full throttle or anything.

SO did I ruin my diff already or is it ok?
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Old 02-24-2012, 11:46 AM
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I have a question I have been told that when you put the diff in you want to be able to tighten from the spur side but I also have been told the other side?So which is correct?does it matter?I had mine on the non spur side and it was fine but I see in the video you do the spur side.Thanks in advance.
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Old 02-25-2012, 06:41 AM
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I followed the whole process, but the first time I checked my slipper, my diff slipped instead, so I tightened it (the diff) down some more, checked it again and got the slipper to slip properly.

The diff only slipped the once, and it's not like it was full throttle or anything.

SO did I ruin my diff already or is it ok?
I would try and run with the diff for now...Most diff's will slip from time to time and I don't think it will be an issue for you...
I have a question I have been told that when you put the diff in you want to be able to tighten from the spur side but I also have been told the other side?So which is correct?does it matter?I had mine on the non spur side and it was fine but I see in the video you do the spur side.Thanks in advance.
According to the Associated manual, the screw for the diff should be on the same side as the spur gear...However, it souldn't make a differance if you put it in the other way...Most people just do it so they don't have to take off both rear tires when they want to make adjustments to their slipper and diff...
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