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D8T rear diff help
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nastety92
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D8T rear diff help - 11.10.2011, 07:50 PM

So a few weeks I was out bashing my D8T with a friend and his Slash 4x4. We were at a constuction site and I went off of a large pile of soft sand and landed upside down on my lid.

After this the truck only had front wheel drive, no movement out of the rear end but it would roll smoothly.

This is a picture of the rear diff parts after disassembly.



My question is, what went wrong and how do I prevent this from happening again in the future?

Also, where do these ball bearings go and am I missing any.


Thank you very much for the help,
Nick


Tamiya TRF801Xt-e
   
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scarletboa
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11.11.2011, 01:44 PM

if all the gears look good, it was probably just the rear drive cup's grub screw that came loose.


They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.
   
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brian015
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11.11.2011, 02:03 PM

Quote:
Originally Posted by nastety92 View Post

Also, where do these ball bearings go and am I missing any.
Is that the bearing from the pinion gear? It seems to have exploded - you should buy a new bearing.
   
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freddy
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11.11.2011, 02:20 PM

Agree, those metal balls are prob from a bearing.

I dont recommend using wd40 ore simulare fluid on rc as it will quicly deteriorate bearings and also plastic parts, not saying it is the cause here, just a tip.
   
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nastety92
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11.11.2011, 02:47 PM

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Originally Posted by brian015 View Post
Is that the bearing from the pinion gear? It seems to have exploded - you should buy a new bearing.
Yes I'm pretty sure just the bearing came apart causing this problem. I was just confused while looking at it at first. Now I can see the bearing is in multiple pieces causing my problem.

I'm going to rebuild the rear diff with a few new pieces while I'm in there.

Thanks for the help,
Nick


Tamiya TRF801Xt-e
   
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bdebde
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11.11.2011, 03:07 PM

Yep... looks like bearing failure to me. Diff pinion bearings take a beating in truggy and should be replaced pretty regularly.
   
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nastety92
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11.11.2011, 03:17 PM

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Originally Posted by bdebde View Post
Yep... looks like bearing failure to me. Diff pinion bearings take a beating in truggy and should be replaced pretty regularly.
I've been running this truggy for eight months or so now and have done no maintence what so ever to the rear diff.

I'll make sure to grab an extra one when I get it's replacement.

This D8T has been almost bullett proof for me. What a great truggy for bashing.

Nick


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