High Power=Excessive Drivetrain Failure?

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Have you guys considered putting another bearing in the d shaft on the brake hub side of your ali gear plate (will require machining) as this will give the D shaft more support i have not done it yet myself but will be very soon . I noticed that when you tighten up the nut on the D shaft it starts to put pressure on the grub screw trying to pull the shaft out of the hub and then the hub starts to run off centre and causes a lot of the wear and slop that people are having , so as well as a second bearing for support i would suggest fitting a second offset grub screw in the hub just as the gear holders have this will then help keep the shaft running true and stop the wear and slop issues that are happening again just my 5cents worth cheers.
 
i used an inner race from a blown d shaft bearing and an inner race from a nitro axle bearing. they spaced out the bearing and took the pressure off of the grub screw. at the same time, i put in a new coupler and grub screw, green locktite and let it all cure for a day. that was about 3 gallons ago, and i don' even bother checking because it doesn't come loose. i did have to build a collar with set screws around the bearing cup to keep pressure on it and stop it from hammering out, but that's a different problem.
 
I did put spacers and washers on my D shaft to keep it tighter in between where it sits. It still loosens but instead of 1-2 tanks now its 2-4 and it doesn't get super loose just a little then I retighten it. Here is my temporary fix: http://www.redcatrampageforum.com/showthread.php?t=1683


Someone else welded theirs which I may have done in the future but I am working on a true center diff so might go to something else completly who knows.
 
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