420 IRS rear end, one wheel drive - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
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post #1 of 1 (permalink) Old 05-20-2019, 01:47 PM Thread Starter
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Join Date: Nov 2009
Posts: 6,162
420 IRS rear end, one wheel drive

Looks like my ring gear on the wife's 420 has stripped the splines.

Went for a short cruise yesterday and noticed that I had one roostertail coming from the right side. Left side isn't pulling anymore.

Sooo, that means stripped splines on the ring gear and likely on the CV as well.

Anyone know if the 09-14 and 15-up rear diffs are interchangeable? They look the same, but looks like the later ones have slightly different bearings in them so they aren't EXACTLY the same. I'm just wondering if the mounting points are the same where one would bolt in place? Ring and pinion tooth count is the same so gearing would work fine.

@toodeep, you happen to have any idea?

2005 Foreman Rubicon Camo
Perfex, 27" Mudbugs
Heated grips and Thumb , HID's
5K Viper Max winch

2009 Foreman 500FM Green
Perfex with HL springs
27" Execs on Rubicon rims
Heated Grips and Thumb, HID's
4K Viper Max winch

2006 Foreman 500FM Green
28" Mugbugs, stretched, Perfex, HLsprings
3K Superwinch winch

2009 475 Rancher AT Tan
26" Mudbugs on Rincon rims
Warn winch. Foreman pod light with HID, SRA gear reduction
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