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BMW 3-Series (E90 E92) Forum
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Decided to fit a M3 diff
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12-19-2012, 11:09 AM | #221 | |
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I presumed the torque specs were the same as the e92 non m3, most of the times the bolts are just longer on the m3. I had to take my sideshaft and hubs to a shop where one person used a centre punch held in place with mole grips and the other a massive sledgehammer. My car had done 80k miles by then and they were stuck in pretty bad. I actually damaged my original sideshafts as I tried hitting them with just a hammer and the threaded portion deformed pretty bad. My driveshaft flange was stuck in the diff when I bought it so I just used what was originally there. Which part number are you talking about in the pic? http://www.realoem.com/bmw/showparts...02&hg=26&fg=10 |
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12-20-2012, 02:15 AM | #222 | |
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part number 15 some kind of gasket though I dont know even how it is possible to put it on. Because there is no gasket on mine m3 drive shaft. BTW 135/335 side shaft bolts is M10 and M3 is M12 I know that torque on 335 is 70nm so maybe 80nm for M3 would be enough. |
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12-20-2012, 03:22 AM | #223 | |
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I would put a dab of thread locking compound on the side shaft bolts as a bit of security. My solid diff bushes should be delivered today so I will be rebuilding the car in the next few weeks and will be able to get pictures and measurements for those who require them. |
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12-20-2012, 07:36 AM | #224 | |
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Do you feel that 335 diff bushes to soft how can you describe it? Also what about rear sway bar? Would be nice to see some pics but measurements I believe will be different for 135 base. |
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12-20-2012, 10:28 AM | #225 |
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I had issues with the rear end 'wandering' and not feeling stable under hard acceleration in a straight line. So I decided to rebuild the rear end and ended up going for a full m3 rear rather than a hybrid of 335 and m3 parts. I'm not sure if it will correct the problem completely but I hope for significant improvement. I've changed the subframe bushes for 70d AKG polybushes and might go for a different suspension setup. I'm running a custom bilstein and eibach setup with e92 m3 rear sway and e93 m3 front sway bar (thicker).
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12-20-2012, 10:44 AM | #226 | |
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BTW is AKG bushes something similar to powerflex? Did it improved your ride? |
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12-20-2012, 01:03 PM | #227 | |
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The AKGs are quite a bit stiffer than the powerflex bushes. I haven't driven on them yet but I think it is going to feel quite different. BTW I've got RB Turbos and meth so my car has huge amounts of torque |
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12-22-2012, 03:55 AM | #228 | |
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01-02-2013, 02:13 PM | #229 | |
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Maybe you know the correct length of drive shaft? Or by how much it have to be shortened M3 DCT shaft? |
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01-03-2013, 10:36 AM | #230 | |
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I haven't measured the shaft but I'm not keen on sharing the measurements just in case other people use them and find that it doesn't work on their car. Best way is to fit the diff and accurately measure the length yourself. It took me 2 attempts to get it perfect as I didn't want to shorten the shaft too much. In fact, I think I might have a manual driveshaft on mine. |
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01-03-2013, 12:52 PM | #231 | |
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Manual shaft is 1433mm length the DCT is a bit longer. P.S. Maybe you know some cheap place to get M3 bushings? |
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01-03-2013, 01:48 PM | #232 | |
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Id get a jubilee clip and clamp the wire to the end of the diff - id mark on the wire with a pen were the edge is. Id then pull the wire out all the way to the gearbox rubber flange/coupler, as tight as I could. Id then mark on the wire the point were it reaches the outer edge of rubber flange/coupler. Id be looking to use the same outer edge that the wire is attached to on the diff ( ie bottom to bottom) Thats kind of how I see doing it in my head - hope it helps a little. Ill try and pchop a diagram if it helps?? |
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01-03-2013, 02:15 PM | #233 |
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Here's a wee pic...
I've noticed that the driveshaft fits inside the diff slightly, so youd need to measure how many mm it slots inside and take that off the total driveshaft length. |
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01-03-2013, 02:20 PM | #234 | |
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And i was asking of your measurements just to have to compare with somebodys measurements Thanks again |
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01-03-2013, 02:49 PM | #235 |
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I don't have a measurement of my own at the minute, but once I get my driveshaft made I'll take measurements so we can maybe get a few together for comparison.
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01-04-2013, 03:19 PM | #236 |
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335i diff vs M3 diff M3 rear axle frame
Juts would like to share all of you, that i am working on my 335i full rebuild
(engine, new twins, etc, etc, ...full M3 suspension swap). Concerning the M3 suspension and diff, i have fitted all components from M3, including rear-axle frame as well. The mounting point of the 335i diff is the same as e9x M3 diff, therefore they are interchangebla, so you can fit the 335i dif to the M3 frame, which i did until I rebuild my diff's internal and swap an e46 M3 LSD into it (with 2.56 FD from 335i diff). If i change my 335i open diff to an LSD, maybe DSC/DTC software should be changed to e92 coupe M3 version as well, who knows or has any experience regarding that? Also I am working on a hibrid half-shaft, which will be much-much stronger than the factory one and can be joined to 335i diff house. (I am located at Europe,therefore the cost of a DSS half-shaft will be much more, than pur half-shaft, which will almost have the same HP/NM rating). Laszlo |
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01-05-2013, 05:12 AM | #237 | |
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01-05-2013, 11:04 AM | #238 | |
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and hibrid half-shafts. |
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01-05-2013, 11:19 AM | #239 |
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Are you sure it will fit plug n play? Are you sure your final drive is not welded with diff. Anybody did that already? Why you want 2.56 FD on 335i you will be going to 80 km/h in 1st gear...
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01-05-2013, 05:46 PM | #240 | |
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2.56 FD is the factory Final Drive for my 335i DCT. I do not want at this time to haveother than factory FD. And yes, my diff is welded, so need som mechaning, which is no prob at all, my friends did it a few times. |
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01-17-2013, 04:29 PM | #241 | |
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Drives: 335i M Sport black edition
Join Date: Jun 2012
Location: United kingdom
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NOW i have found an M3 complete rear subframe with everything on it even the discs and calipers Can I just remove my subframe and bolt this straight on then modify build the drive shaft? Really like this idea |
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01-17-2013, 05:17 PM | #242 | |
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Drives: 335i M Sport black edition
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My question is, does this final drive (3,15) work better for you. I also have a heavily modded car pushing over 400WHP so this will help determine the final drive |
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