Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Apr 2012
    Location
    Lynchburg, Va
    Posts
    249

    Diff becomes paperweight

    I'm in the middle of a rear subframe refresh and opened up the diff today while the guy doing the real work with the subframe was doing his thing. Name:  diff wear.jpg
Views: 228
Size:  165.0 KB https://goo.gl/photos/SS5XkK7mtZdZSLRk8 for a video. Where would you fine mafiosos recommend I look for a lsd that will last until my wife forgets that this ever happened?

  2. #2
    Join Date
    Sep 2011
    Location
    San Francisco, CA
    Posts
    6,847

  3. #3
    Join Date
    Apr 2012
    Location
    Lynchburg, Va
    Posts
    249
    Location for procuring other than a junkyard off of a wrecked e46m?
    AFAIK I can't just drop the whole diff assembly into the subframe of an non-m and Im far enough along in the refresh that I don't want to throw away that work (money).

  4. #4
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    6,149
    As long as you ring gears and housing are in good shape, the folks at Mfactory or diffs online can rebuild it for you with your choice of LSD
    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

  5. #5
    Join Date
    Jun 2011
    Location
    VA/DC
    Posts
    14,445

  6. #6
    Join Date
    Sep 2011
    Location
    San Francisco, CA
    Posts
    6,847
    Quote Originally Posted by Asiah119 View Post
    Location for procuring other than a junkyard off of a wrecked e46m?
    AFAIK I can't just drop the whole diff assembly into the subframe of an non-m and Im far enough along in the refresh that I don't want to throw away that work (money).
    You are correct. M3 Diff requires M3 Subframe to fit. Your swaybar, driveshaft will also be incompatible.

  7. #7
    Join Date
    Jan 1970
    Location
    Liberty Township, OH
    Posts
    37,935
    Quote Originally Posted by derbo View Post
    Mfactory
    This

    Sent from my Pixel XL using Tapatalk
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  8. #8
    Join Date
    Apr 2012
    Location
    Lynchburg, Va
    Posts
    249
    Is there any quantifiable reason to not go with a wavetrac? The warranty on it is mighty tempting. And how involved is adjusting the speedo going to be if I change the final drive? I have PA soft.

  9. #9
    Join Date
    Apr 2012
    Location
    Lynchburg, Va
    Posts
    249
    Also, I have a leak in my rear main seal, Ive not been driving the car much so it's difficult to say how significant the leak is: no puddles under the car. Is it worth it, while I'm already spending money on a diff that I wasn't planning on to go ahead and drop the trans, fix the leak and see if the clutch/flywheel is also fucked.

  10. #10
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    6,149
    You don't have to do anything with the speedo calibration. It gets its data at the wheel sensor
    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

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