Rear Differential and Seal Replacement - 2013 Rancher

1409 Views 8 Replies 3 Participants Last post by fishfiles, Feb 25, 2018

TheAmericanSS

Discussion Starter · Feb 24, 2018

Hello all, first time poster here. I've got a 2013 Rancher 420, 2x4, manual shift. I love the thing to death, I've done a lot to it such as a winch, custom strobe light package; it's my second baby behind my car. Well, I've noticed recently that my rear differential has started to leak around the point where the axle exits the differential on the left side. I can order the kit with new bearings and seals and do it myself, I just need to know how to do it. Anyone here done this repair themselves?

Thanks,
Brandon

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TheAmericanSS

Discussion Starter · #3 · Feb 24, 2018

alloutdoors said:
That is a straight forward and nice little project. To get a copy of the service manual, go here and download what you need.

If it were me, I would change all the bearing, seals across the entire axle and start fresh. Also this is a great time to give the brakes a "honest" assessment as well. Do remember, the rear end differential takes hypoid oil, so that is readily available at many different stores, see the service manual for details. We are help to help along the way.....

I've got some hypoid gear oil from a previous service job. These are the original seals from 2013 so I'm not doubting that they are shot. I'll go download the service manual. I am having trouble with my rear brakes, They grab, but I think the cable is stretched. Way too much slack. I've tried adjusting them and never can get it right.

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TheAmericanSS

Discussion Starter · #5 · Feb 24, 2018

alloutdoors said:
TheAmericanSS said:

I'll go download the service manual. I am having trouble with my rear brakes, They grab, but I think the cable is stretched. Way too much slack. I've tried adjusting them and never can get it right.

Click to expand...

This is the perfect time to address anything attached/working with the rear end. I would carefully take all apart and then make a parts list, because you are likely to find few other gremlins when surgery begins, LOL....

Will do. The bike has been through a rebuild once before, I tore the whole thing apart to switch to yellow plastics from a 2007 and add my little "goodies" :devil

It's got a custom emergency strobe light package, amber/white on the front/rear, and then I made the headlight hi-beams alternate. Also added the winch then too.

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TheAmericanSS

Discussion Starter · #8 · Feb 25, 2018

fishfiles said:
There is always another way , flush the rear end with diesel , then clean oil and install a grease fitting in the cap and pump it full of marine grease , ride it to it fails then fix it right , which might be longer than it would last with oil in it ----to get into fixing the rear end , you will need tools to do it right , if you don't have the tools , some procedures can be done without them , it can be easy and it can turn into a ant pile

What special tools would be required? Seems like it can be done with the usual assortment of wrenches and sockets. Bearing press can be made out of a socket and a extension, I don't see much else being required.

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