700 grizzly front differential locker fork removal 2007 - Yamaha Grizzly ATV Forum
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post #1 of 7 Old 07-08-2019, 05:50 PM Thread Starter
 
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700 grizzly front differential locker fork removal 2007

I have the front diff completely apart except for the left housing which still has one bearing and the fork along with the sliding gear which locks the diff. I have seen on the 660's you can unscrew the little shaft the fork rides on but on this 700, it looks to me like the shaft was inserted into the housing then the house was stamped to seal the shaft in. Been surprised that I cant find any discussion about this. The bearing is shot and has to be replaced. The service manual doesnt mention it and the parts list doesnt show anything but the entire housing available to buy. I bought a rebuild kit and it contains 3 bearings and counting this bearing, there are 4. How the hell do you get that fork and gear out to replace the bearing or is it not meant to be replaced except as the entire housing?

The first pic is a view of the shaft and the sliding fork, The other pic is what the end of the shaft looks like where it was inserted at the factory.
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post #2 of 7 Old 07-09-2019, 08:44 AM
 
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Go to forum sponsor 501 Parts.com Yamaha 4wd System Parts and Repair for all front dif repair info.

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post #3 of 7 Old 07-09-2019, 01:47 PM Thread Starter
 
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Thanks for the link, I actual ended up there last night and didn't find anything about it. Ill look again.
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post #4 of 7 Old 07-09-2019, 01:49 PM Thread Starter
 
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Opps ended up with a double post and cant find the delete.
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post #5 of 7 Old 07-17-2019, 04:08 PM Thread Starter
 
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For what it's worth, The dealer told me it's not rebuildable and the entire housing has to be replaced. I'm sure you could drill out the inside or grind away on the outside and get that shaft out and replace the bearing. You would just have to seal the shaft back in with a weld or set screw... whatever would seal it and hold the shaft. But I just replaced the entire housing.
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post #6 of 7 Old 08-08-2019, 04:55 PM
 
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I am facing this exact issue. It seems a bit lame to have to replace the entire LHS front differential case just to replace a bearing. I did manage to get the old bearing out without removing the selector fork but I really want the fork out of the way before trying to insert a new bearing which, by the way, is a Koyo 16006 in my 2013 (easy to find on-line - 30x55x9mm).

I am going to drill out the rod retainer and get a small groove cut in the rod at the extreme RHS (as in your first photo) so it can be resecured with a c-clip. Not sure what model years this affects but I'm really surprised not more people have run into this. I cannot find any individual LHS case parts on-line at all.
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post #7 of 7 Old 08-09-2019, 12:21 PM Thread Starter
 
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I was surprised to not find hardly any info online about this issue. This was a customers ATV so I ended up just telling him the situation and bought an entire new half. If it were mine, I would have hacked out that rod like you're doing. Be careful securing from the inside. If that clip comes off, could cause carnage. That pin backs up to the ring gear and could slide into the bolts on the back of it and a clip floating around in there wouldn't be so great either. As long as you get it on there SUPER TIGHT, could be the answer. I had thought about grinding it from the outside and pulling the pin out that way then tapping it and using a set screw to secure it back in, I think the 660s are done like that from the factory. I think 2007 with the 700 is when they stopped doing it that way, no idea why. Second choice, having the hole welded closed from the outside after sliding the pin back in. Good luck.
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