65-67 NOS Rear Axle Bearings

Discussion in 'Parts for sale' started by flh73, Aug 31, 2019.

  1. flh73

    flh73 Gold Level Contributor

    65-67 skylark GS 400 rear axle bearings and seals. These are NOS and not reproduced. $500
    D5385FF8-1329-4DF7-AA8C-EC6B119EB718.jpeg 5C221F37-C9E0-4F5A-BF77-4FEBAB2A2153.jpeg
     
    Last edited: Sep 25, 2019
  2. wkillgs

    wkillgs Gold Level Contributor

    The RW507A is for the 1965 GS and Sportwagon. EDIT: see post #5 for clarification.
    The 66-67 takes the RW507G
     
    Last edited: Sep 26, 2019
  3. flh73

    flh73 Gold Level Contributor

    I did additional research. These bearing and seal are compatible and will fit 65-67 as originally stated.

    Bearing dimensions: as stated on this forum by PBR400 on 11/7/2012.
    ID 1.436
    OD 2.890
    Width .7

    These dimensions were verified from this set to a 67 rear end.

    Now the R is for I believe locking ring that may have been added after 65. However I believe this only shows that the part number changed later but these are absolutely compatible bearing and seals for 66-67 as well.
     
  4. BrianTrick

    BrianTrick Brian Trick

    I don’t know where the changeover was,but there have been a few guys with 67’s that needed and bought the RW507GR bearings from me. It might have been a mid year change.
     
  5. wkillgs

    wkillgs Gold Level Contributor

    I'm just trying to help, but your statement AND my prior post wasn't accurate either. Let's get to the bottom of this... I did more research too.
    The 'RW 507AA' on the box threw me off...
    RW507A bearing is for 64-65 Sportwagon and 65 GS. These have a larger OD than the normal Special/Skylark RW507C bearing.
    RW507G bearing is for 66-68 Sportwagon, GS and 66-early 67 Lesabre. These have the same OD, but a larger ID.
    A 'R' suffix means it includes the retainer.

    BUT the '907965' part number shows your bearings are for a 66-68 GS and Sportwagon and 66-early 67 LeSabre
    Here's a pic from a 64-72 Buick Special parts book:

    upload_2019-9-26_0-28-15.png
    I checked my 1973 parts book and the numbers changed from 907682 to 907884 for 66-68 Sportwagon and GS, and 66-early 67 LeSabre.

    And I will confirm your bearing with 1.436" ID will fit the axle from my '66 GS:
    upload_2019-9-26_0-30-44.jpeg

    THEREFORE, your bearings should fit 66-68 Sportwagon, Skylark GS, and 66-early 67 LeSabre's.
    1965 Skylark GS should use the RW 507A(R) bearing.
    I think Brian will agree.
    I don't know why in the world your boxes show a RW507AA number. GM and aftermarket part numbers don't always agree. .... That gets just Damn confusing!
    I think we straightened this out. Finally.
     
    SpecialWagon65 likes this.
  6. flh73

    flh73 Gold Level Contributor

    Thanks Walt, this is consistent with what was learned when these parts were purchased as well, with measurements etc. You confirming these will fit should help others find the correct difficult to find parts for our Buick's.
     
  7. Cap

    Cap New Member

    Hello All,
    I am new here and in search of 2 RW507G bearings. That is the number stamped on the race that came out of the housing. What can I replace them with? The shaft size is 1.378.
    HELP.

    Thanks
    Eric
     
  8. larkone

    larkone Silver Level contributor

    Just replaced the rear wheel bearing in my 65 GS looked for a long time finally found a nos one in Washington State.
     
  9. wkillgs

    wkillgs Gold Level Contributor

    Go to the 'Got Gears' section and look up Brian Trick. He recently posted he has some in stock.
    Monzaz is another board member to check with.
    http://www.v8buick.com/index.php?forums/got-gears.13/
     

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