S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Rear axle nut size

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Old Nov 24, 2015 | 06:03 PM
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09 S550, 08 Charger Srt8, 63 Ford Galaxie 500, 07 GSXR1000
Rear axle nut size

Anyone know the size of rear axle nut?
I tried a 36mm but it is too big. I'm at Sears and they only have a 32mm and 36mm
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Old Nov 25, 2015 | 07:57 AM
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09 S550, 08 Charger Srt8, 63 Ford Galaxie 500, 07 GSXR1000
Well I found out it is a 32 mm. Now onto replace the wheel bearings. Wish me luck
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Old Nov 26, 2015 | 08:49 PM
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2009 S550 AMG sport pckg. 2014 Ford F-150 Lariat Supercrewcab
remove collar nut, then remove the parking brake shoes, then press the hub out. next try and move axle out of the way to make room for loosening the 4 bolts that hold the bearing on and remove the old bearing. next you have to remove the inner bearing race from the hub. i use a trick where i take a dremel tool and score a groove in the inner bearing race about halfway through and then hit it with a chisel and the race pops right out. Next you have to press the hub into the new bearing. make sure you put a backing plate on the opposite side of the bearing or the inner race on the opposite side will come out and the bearing will be garbage. youtube removing/installing bearings before you attempt this because it is very easy to mess up the new bearing installing it if you have never done it/ do not have the proper tools. also you do not want to overpress the hub into the bearring or you will cook the bearing very quickly. also the 4 bolts are 70nm and the collar nut is 350nm
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Old Nov 26, 2015 | 09:06 PM
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this is a similar job
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Old Nov 26, 2015 | 09:23 PM
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Old Nov 30, 2015 | 07:30 AM
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09 S550, 08 Charger Srt8, 63 Ford Galaxie 500, 07 GSXR1000
I ended up taking it to an indy shop and they charged my $508 for parts and labor.

I couldn't take the nut off so just put the wheel on and drove it there and let them deal with it.

I drove the car this morning to work and looks like my rear driver side needs to replaced now, I can here it as I am driving.
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Old Nov 30, 2015 | 06:58 PM
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I think you made a good call. It's not an easy task without having the proper tools/experience. I've screwed up quite a few bearings on my cars in the past and learned how not to with experience lol
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Old Dec 1, 2015 | 08:44 AM
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09 S550, 08 Charger Srt8, 63 Ford Galaxie 500, 07 GSXR1000
lol yeah, they charged my 160$ for the part. SO this time I ordered the part myself and will take it in to get it replaced. They are good and charge $78 an hour and have been happy with their work.
Hopefully nothing else goes wrong with my car lol

So far, I had to replace right rear parking break, radiator, front drive shaft, and now the rear wheel bearings. Only thing I did myself was the radiator.
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