Join Date: May 2017
Location: Vernon,BC, Canada
Brute force front axle inner splines getting shredded
First off, I want to commend everyone involved with the Mudinmyblood site for providing this venue for such a great community to come together! Wow!! I am so impressed with all the help I have seen members giving each other. Great work.
First my machine: 2009 Brute Force 750
A while back my 4WD stopped working. I eventually discovered that the problem was the front left-side axle. The very tip of the splined end that goes into the front gear case had sheared off, right where the little c-clip is (as seen in the one pic, where I am holding the sheared off tip near the newer axle's mangled spline-tip). So, I replaced the shaft, and after 1 minute, literally 1 minute, the 4WD stopped working again. Thinking that perhaps I had done something wrong during the re/re, I pulled the new shaft out, and, as you can see in the pics, again the very tip of the new shaft was wrecked. This time the little splines are just mangled, not sheared off; however, the result is the same...no 4WD because the front left wheel is not receiving proper input.
So...has anyone ever seen anything like this before? I am suspecting that something is not working correctly in my front gear case; however, it makes no weird sounds or grinding etc, and the oil in it is brand new and clean. The oil before I replaced the first axle was pretty grey/milky, so maybe the dirty oil had something to do with the first failure, but as I changed the oil before installing the new axle, which also failed, I doubt it.
I look forward to hearing what you all might have to say.
Last edited by Mooseheadluke; 05-21-2017 at 09:21 AM.