'98-'00 AWD Component Parts Listings
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    1. #1
      Member lookforjoe's Avatar
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      '98-'00 AWD Component Parts Listings

      Note that the vin break listed, even in the '99 slide is a '98 vin break. These early ones use SKF bearings. The pinion bearings are the same as RWD 1031 rear pinions: 183841 (HM89449) & 183839 (M86647). Bearing cups are HM89410 & M86610. Main shaft bearings are 32010x, same as AWD Diff.





      mid 98-99 style



      longer pinion to diff casing offset, recessed yoke for CV joint (unlike early '98) 3 versions shown:



      Volvo reman mid 98-99 unit 8602679 (NLA)



      '00 ONLY


      note the shorter pinion to diff casing offset - which indicates that the right side driveshaft will also be different than '99, having a longer shoulder to provide a seat area for the BG (outer casing) inner seal.





      Note 1 : 9183491 shaft = chassis range S70 465739-621367 V70 465339-630091
      9463300 shaft = chassis S70 621368 - on V70 630092

      The production change here was in regard to the center bearing - later shafts have a larger bearing & carrier.
      Note 2 pertains to the fact that the replacement CV ONLY fits original Prop shafts





      Last edited by lookforjoe; 11-19-2018 at 09:04 PM.

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    3. #2
      Member lookforjoe's Avatar
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      Driveshafts - mid 98 - 00



      EDIT 3/08/14: Carrier variations - note that the later 99-00 DS with larger (better) carrier bearing CAN BE USED in late '98's - you have to re-drill the carrier mount holes in the support plate to 2.25 on center, inboard of the existing 3" on center holes.



      Driveshaft/Exhaust support bracket: 9474483 (98-99) 9133420 ('00, NLA)



      listed as position 19 in the Front Floor Section.

      Torque Tube/ VC variations





      mid '98-'99 BG length



      '00 BG length



      change in sump design





      BG internal components





      Difference in '98-99 & '00 Pinion - '00 uses Koyo bearings, smaller OD



      SKF pinion bearings: 183839 (M86647) & 183841 (HM89499) - same as used for the RWD 1031/1041 diff pinion. Carrier bearings: 32010x (2)

      M6647 (183839)


      M69410




      Don't have the numbers for the Koyo bearings (EDIT 32006J )



      Diff/BG coupler current PN : 31256008 (manual)



      check for spline wear here:



      Reference thread on V70R regarding Spline Coupler construction analysis

      Inside Viscous Coupler



      Freewheel Mechanism



      Design & Function




      Typical torn front CV boot





      Binding CV due to lack of grease/cooked - typical cause of vibration



      CV components



      Re-assembled, ready for CV grease - note markings to ensure correct reassembly

      Last edited by lookforjoe; 01-12-2019 at 10:44 PM. Reason: added carrier/exhaust support info

    4. #3
      Member Big Will's Avatar
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      Great post Hussein! This should really be stickied. Thanks for taking the time to document all of that.
      98 V70 AWD - M58 Gearbox | VAST tune | 20T turbo | Green injectors | NA intake & throttle body, EST Intake, Snabb Fresh Air Pipe & Reverse Intercooler Piping | R Manifold, TME Downpipe, TME Exhaust | IPD Swaybars, Volvo Strut Brace, Öhlins Roadholding Suspension | 302mm front rotors, vented R rears, SS Brake lines | E-code C70 jewel headlamps. Engine build thread

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    6. #4
      Member lookforjoe's Avatar
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      Right Axle Variants '98-00

      '98-'00 front to back. Arrow indicates seal seat (28mm OD).

      EDIT: Carrier Bearing VO 9181693 (FEBEST 45x75x19)



      So, the '00 (R) axle doesn't work in an M66 AWD because it's too short. Fixed point is the bearing, since that is located on the engine in the same location regardless of transmission. This is from a 5 speed Auto AWD (R, # 8251521 (8601580) (9463921). If there were any 4 speed Auto AWD in '00, I would expect that it would work as is. The '99 axle PN 8251520 (8601576) (9463762) will work, but the outer BG seal seat is not in the correct location. '98 auto AWD axle pn: 8251509

      EDIT: There seem to be 2 '00 AWD 5 speed auto axles. The one pictured, is from an R. I took an axle from an '00 XC today, and it looks like the earlier design; the PN is 8251523 (8601589) (9463351)



      Either a .5mm collar needs to be fabricated for the seal to seat (1mm difference in OD between seal seat & rest of shaft), or a smaller ID (27mm) seal would need to be sourced. Probably easier to look for a seal, IMO

      28mm ID


      38mm OD



      Shaft OD

      27mm

      Last edited by lookforjoe; 11-19-2018 at 09:12 PM.

    7. #5
      Member lookforjoe's Avatar
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      The '00 XC 4 speed auto axle (9463351) 8251523 is the correct axle for anyone doing an '00 M66 conversion

      2nd from top, incorrectly described as XC 5 speed auto (top axle is the R-only 5 speed axle)


      '98/99 offset compared to '00 (top)


      The problem is that the aftermarket sources have the listings all screwed up. If you order a 8251253, it is (incorrectly) superceded to 8251251, which is the Volvo # for the '00 R axle. The correct axle is sold under 8251520, which is the Volvo # for the '99 axle!

      Last edited by lookforjoe; 12-02-2018 at 05:14 PM. Reason: change 5 speed auto to 4 speed auto

    8. #6
      Member matt1122's Avatar
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      Thanks for posting this information, it's come in handy and I've learned a bit from it. I see the section on the lock-up mechanism under the freewheel description is cut off and was wondering if anyone could help me find that information. Would love to know more about how that works.

    9. #7
      Member lookforjoe's Avatar
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      Quote Originally Posted by matt1122 View Post
      Thanks for posting this information, it's come in handy and I've learned a bit from it. I see the section on the lock-up mechanism under the freewheel description is cut off and was wondering if anyone could help me find that information. Would love to know more about how that works.
      It's actually shown in the pic - the ramped ball bearings constitute the centrifugal lock-up - they are thrown outwards & lock the inner & outer shafts. When that goes bad, it sounds like a bag of bearings being rattled around in a tin can.

    10. #8
      Member lookforjoe's Avatar
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      BG seal part numbers:

      Carrier seals (2) 9143879 (position 3 in the '00 diagram, same part for 97-)
      Driveshaft seals (2) 9143885 (where shaft passes inside BG, and into differential)

      Crown nut O-ring (1) 925258

      Fill plug seal (1) 11998

      Pinion seal (1) 9183891 (I would NEVER replace this unless it's obviously leaking! Just like the rear diff, there is a compression collar that sets the pinion backlash - if you don not torque to spec, you WILL damage the BG!)



      Diff sleeve outer seal (automatic trans AW50-42) (1) 9496129
      Diff sleeve outer seal (automatic trans AW50/51 AW55-50) (1) 8636194
      Diff sleeve outer seal (M66) (1) 9143911

      Chromed Diff/BG Sleeve (1) 31256008 (9181408) (Manual trans)
      Oring (1) 976041

      Last edited by lookforjoe; 01-12-2019 at 10:49 PM. Reason: PN change, add illustrations

    11. #9
      Member lookforjoe's Avatar
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      Diff/BG collar: What to look for. Typically the splines will wear on the BG side of the collar. What you need to look for in terms of wear is that the splines still have a 'flat' between each valley:



      Look at this pic, you can see the splines are worn to a sharp edge, next step would be stripping of the collar, and subsequent damage to BG

      Last edited by lookforjoe; 11-19-2018 at 09:25 PM.

    12. #10
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      Wow (H/LookforJoe),
      detailed, time consuming, and yet extremely valuable.
      As a new member, I will speak for the "future members of the community" to say
      "Thank You" for generously putting in the time and effort to document your experience and share it with us.

      Kudos also to all those that keep this opportunity open to us (via the forums/site).

    13. #11
      Member lookforjoe's Avatar
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      Update. IPD now sells an AWD right side axle that will work on both '99 and '00 4spd auto models - which means you can replace your dead '00 BG with the more readily available (late)'98-99 BG's, you just have to buy the custom axle from IPD - it has seal seats in two spots, to accommodate both versions.

      EDIT: NOTE - The '00 Down Pipe will require modification also if the earlier Bevel Gear is used - the change in offset of the pinion will negatively impact fitment of the stock '00 DP.

      IF you are planning a manual AWD swap on your '00 R, you will need BOTH left and right axles (either '99 or '00 4spd) - the 5spd auto axles DO NOT fit the M66/or M58 trans. You will also need the '98-99 trans mount (9161101) instead of the '00 version.

      The left axle lacks this shoulder:

      this pic courtesy of BlackT5 on VS



      needs to look like this:





      which the illustrated seal will seal against

      Last edited by lookforjoe; 05-29-2014 at 10:05 PM. Reason: correction

    14. #12
      Member lookforjoe's Avatar
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      If installing a Quaife 14J or WaveTrac, etc., (AWD POSI) differential, you need to order 32008 and 32010 bearings



      housing and axle seals

      8675580
      9143885
      6843481
      9143911

      Last edited by lookforjoe; 11-19-2018 at 09:30 PM.

    15. #13
      Member lookforjoe's Avatar
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      This is an information only thread - Start a new thread & post what you have here.

      Quote Originally Posted by aziz View Post
      awesome!
      greetz!aziz
      Last edited by lookforjoe; 06-27-2014 at 09:58 PM.

    16. #14
      Quote Originally Posted by lookforjoe View Post
      Driveshafts - mid 98 - 00

      I don't know if it's the camera angle, but is the '00 driveshaft longer than the '98-99?
      Also, if I wanted to use a shaft from a '99 XC in my '00 XC, would it work? I have an upper end VIN as far as the VIN split goes and I don't know the VIN of the '99
      Last edited by Cabbagefumes; 01-23-2017 at 11:51 AM.

    17. #15
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      Amazing thread

      Verstuurd vanaf mijn SM-G950F met Tapatalk

    18. #16
      Member titan joe's Avatar
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      Most of the pictures are unfortunately broken now.
      1989 740 Turbo Plus, M46, red leather, and a few mods
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    19. #17
      Member lookforjoe's Avatar
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      Quote Originally Posted by Cabbagefumes View Post
      I don't know if it's the camera angle, but is the '00 driveshaft longer than the '98-99?
      Also, if I wanted to use a shaft from a '99 XC in my '00 XC, would it work? I have an upper end VIN as far as the VIN split goes and I don't know the VIN of the '99
      Not longer.

      '99 shaft would work in '00, might need carrier plate depending on which carrier bearing the '99 shaft has.

    20. #18
      Member lookforjoe's Avatar
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      Quote Originally Posted by titan joe View Post
      Most of the pictures are unfortunately broken now.
      Working on that

    21. #19
      Member BEJinFbk's Avatar
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      Quote Originally Posted by lookforjoe View Post
      Working on that
      Much Appreciated by all of us AWD folks!
      This has become a Legendary Sticky,
      ALMOST as cool as the XR.
      '98 V70 R - Is the AWD worth it? You Betcha!

    22. #20
      Member lookforjoe's Avatar
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      BEJinFbk reminded me with his post that I forgot to add this from a few years back - just in case someone tells you that your old AWD can't handle any power...

      50/50 torque split started once I went over 350AWHP, 450 here


    23. #21
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      2000 Volvo V70XC angle gear and/or differential rebuild

      Hello,

      I'm wondering if anyone with a 98-00 Volvo V70XC has ever had their angle gear and/or their rear differential assembly rebuilt. If so, how much did it cost and were you happy with the result?

      I've seen lots of posts about driveshaft rebuilds but not so much info about rebuilds on these pieces of the awd system.

      Thanks,

      Eric

    24. #22
      Junior Member tuner4life's Avatar
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      I've heard of angle gear failures, but as far as the rear end goes, nobody really bothers as it is extremely overbuilt for the application. From what I remember reading, the rear end is the same as from a 700 or 900 series and is also locking. Given that these AWD cars are only partial torque split, there would be very little stress on the rear diff. I was actually surprised that there aren't more (or any) RWD converted P80s..
      -Jason

      1998 Saffron C70 HT Coupe
      1998 Saffron V70R AWD

      ...And many more non-Volvos

    25. #23
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      Quote Originally Posted by tuner4life View Post
      I've heard of angle gear failures, but as far as the rear end goes, nobody really bothers as it is extremely overbuilt for the application. From what I remember reading, the rear end is the same as from a 700 or 900 series and is also locking. Given that these AWD cars are only partial torque split, there would be very little stress on the rear diff. I was actually surprised that there aren't more (or any) RWD converted P80s..
      Thanks, Jason!

      Eric

    26. #24
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      Just joined and have to say that this thread has been highly informative! So thanks. Also wanted to add a few photos of the secondhand driveshaft that I found for sale here in Czech. Looks to have been professionally manufactured. The great thing about it is that it is fully rebuildable. It splits in two, uses universal joints instead of cv joints. I have only just fitted it.... But seems to work fine! Happy days! Let it snow!

    27. #25
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      Ok.... So how do I add pictures!?https://photos.app.goo.gl/wZsM7mfHkpHv9yZm9
      Last edited by Czechxc; 01-29-2020 at 07:21 AM.

    28. #26
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      Quote Originally Posted by Czechxc View Post
      Ok.... So how do I add pictures!?https://photos.app.goo.gl/wZsM7mfHkpHv9yZm9
      That is an interesting design. What car is that from?

    29. #27
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      [QUOTE=Richard99;7504979]
      Quote Originally Posted by Czechxc View Post
      Ok.... So how do I add pictures!?https://photos.app.goo.gl/wZsM7mfHkpHv9yZm9
      That is an interesting design. What car is that from?[/QUOTE

      It was custom made as far as I can tell.... It is how they should have been made! Fully rebuildable... For not a lot of outlay....

    30. #28

    31. #29
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      Quote Originally Posted by Czechxc View Post
      I would think the life span of that driveshaft is a lot better than the stock driveshafts with the CV joints on both ends.

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