replacing rear joint assembly... - Honda ATV Forum
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post #1 of 11 (permalink) Old 08-10-2010, 05:41 PM Thread Starter
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replacing rear joint assembly...

howdy,

I have an 07 honda rancher 420 maual shift 2wd... i broke my rear joint assembly... if anyone can provide some instructions on how to replace it i would appreciate it. i have only had it for about a year i bought it used from a dealer. I have added a scorpion street bike exhaust and 26" ITP mudlites and ITP SS rims.. TIA for any replies...

C'mon man it doesn't look THAT deep!!
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post #2 of 11 (permalink) Old 08-10-2010, 05:56 PM
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Welcome to the forums. I've never changed a u-joint on the 420, but it should be about the same process as any Honda SRA 4-wheeler. You will probably have to either, remove the swingarm and replace the u-joint or remove the brakes and brake backing plate and remove the axle and unbolt the differential and pull the driveshaft back and change it. The first option would probably be the easiest.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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post #3 of 11 (permalink) Old 08-10-2010, 06:01 PM Thread Starter
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thanks for the welcome and reply... going to give it a shot tomorrow... will take some pics and post how it went...

C'mon man it doesn't look THAT deep!!
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post #4 of 11 (permalink) Old 08-11-2010, 06:23 PM Thread Starter
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dropped the swing arm and removed the old joint... which side of the joint would be the easiest to put on first? the side from the block or the side from the shaft?

C'mon man it doesn't look THAT deep!!
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post #5 of 11 (permalink) Old 08-11-2010, 06:36 PM
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Quote:
Originally Posted by 2wdRancherRider View Post
dropped the swing arm and removed the old joint... which side of the joint would be the easiest to put on first? the side from the block or the side from the shaft?
I don't know if it would make much difference, but I would probably put it on the output shaft first.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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post #6 of 11 (permalink) Old 08-12-2010, 12:28 PM Thread Starter
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The old U joint...

Click the image to open in full size.

C'mon man it doesn't look THAT deep!!
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post #7 of 11 (permalink) Old 08-16-2010, 10:49 AM Thread Starter
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As you can see i got the new u joint on without too much trouble. Thanks for all of your help.

Click the image to open in full size.

C'mon man it doesn't look THAT deep!!
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post #8 of 11 (permalink) Old 08-22-2010, 08:57 PM
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Catastrophic Failure

Need some advice ..My 2007 420 has finally failed after much abuse. I'm going to have a pricey repAir this time. My u joint hasn't failed but the spline on the pinion gear/rear drive shaft are shot. I know I have to replace the drive shaft and pinion gear, but what about the u joint and boot? Any help would be appreciated.
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post #9 of 11 (permalink) Old 08-22-2010, 10:09 PM
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Quote:
Originally Posted by Curry10 View Post
Need some advice ..My 2007 420 has finally failed after much abuse. I'm going to have a pricey repAir this time. My u joint hasn't failed but the spline on the pinion gear/rear drive shaft are shot. I know I have to replace the drive shaft and pinion gear, but what about the u joint and boot? Any help would be appreciated.
it won't hurt to take a look at your u-joint..seeing how your gonna have it apart that deep into it..you may as well inspect it..remove your swing arm..and take a look..as for the boot..if it's not ripped apart..reuse it.
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post #10 of 11 (permalink) Old 08-22-2010, 10:17 PM
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I agree, just look the boot over good and make sure it doesn't have any rips or holes in it and if it hasn't, reuse it. I would say that since the driveshaft and other parts are in the condition that you described, that it would be a good idea to go ahead and replace the u-joint because it's probably in bad condition too. If you don't replace it now, while everything is apart, you will just have to replace it later.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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