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  1. #1
    Join Date
    Feb 2002
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    LI,NY
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    16,323

    Default 68 Riviera driveshaft repair- this could get expensive!

    Ive finally deceided to address the driveshaft vibration in the 68 Riv. Around 55-60 mph, there was a bad vibration. I also noticed that making a sharp turn in reverse, there was a wierd noise, almost like a grinding. It sounded expensive

    So I got home from work early today and crawled under the car. First thing I noticed when I pulled it out was a bad hangar bearing insulator. Ripped 2/3 of the way around. The slip yoke is totally shot too. There's play in it. Luckily, I bought an NOS one a while back (now all I have to do is find the damn thing!) So, I dropped it off at The Driveshaft Shop in Islandia.

    I also dropped off a good rebuilt spare shaft I had out of a 69 Riv. I would of just used that, but the rear flanges are different. Figures He's going to take a look at them both tomorrow. Hopefully he can just the swap flanges to keep the costs down. I should get the call tomorrow. Im keeping my fingers crosssed!

    Its going to be nice driving that car with a good driveshaft in it for a change
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  2. #2
    Join Date
    Aug 2002
    Location
    Sheboygan, WI
    Posts
    624

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    Interesting that you noted a difference between the model years. I have 2 '68 driveshafts and 1 '70... I'll have to see if there is a difference. Did you notice it on the U joints themselves or just the flanges on the pumpkin?
    Matt G.

    '69 LeSabre 400 four door thin pillar sedan
    '68 Riviera 455/3.42 posi SOLD
    '70 Riviera (parts)
    ----------------------
    V8 Buick user #1248

  3. #3
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,323

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    The flanges at the pumpkin were different. The 68 had a smaller square flange. the 69 shaft was a large round style.

    Im hoping the CV joints themselves arent a different design. If they are different, things could get ugly!
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  4. #4
    Join Date
    Feb 2002
    Location
    Twin Cities, MN
    Posts
    6,432

    Thumbs up Re: 68 Riviera driveshaft repair- this could get expensive!

    Quote Originally Posted by buick64203 View Post
    The flanges at the pumpkin were different. The 68 had a smaller square flange. the 69 shaft was a large round style.

    Im hoping the CV joints themselves arent a different design. If they are different, things could get ugly!
    I put a '70 shaft in the '66 I owned, and I was able to just switch the yokes on the shaft. The '66 had that square version.
    Hope you can just make a good one out of the 2.
    Dale

    Current Buicks...None. :-(
    Past Buicks. '66 Riv / '70 Rivs (2) / '90 Riv / '72 Skylark / '72 LeSabre / '72 Electra / '96 LeSabre / '92 Park Ave. / '96 Riviera.

    "The guy who invented the first wheel was an idiot. The guy who invented the other three, he was a genius.". Sid Caesar

  5. #5
    Join Date
    Jun 2003
    Location
    The Netherlands
    Posts
    20

    Default I rebuild my own 67 Riv driveshaft and its perfect now

    CV-joints are the same for 66-70.

    Repair kits are readily available. Watch out !!: Be sure though to use the special U-joints with the deep recess in the middle or else the cup witch holds the spring from the CV-joint will hit the middle of the U-joint. This will destroy your rebuild CV-joint very, very quick !!! Been there, done that.

    Even NOS Slip Yokes (Gr 5.548 /5.555 #7804964 for 1965 till 1970 50-60-80-9000 with S.T. 400), Rear Axle Pinion Flanges (Gr 5.548 # 1365165 for 1965 till 1968 Riviera's) and (Yoke Kit Gr. 5.548 # 1396837 or Prop Shaft Ball Stud Spline and Seat Kit Gr 5.442 # 1396837) show up on Ebay. I bought several of them, so I'm good for the next 50 years or so.

    Locknut is Gr 5.601 # 1365189

    Numbers vary, depending in wich Parts Book you look, as I'm sure you'll know.

    So, check the CV-joints when you get the rebuild drive-shaft. They should kind of easily "snap" (without interference from what so-ever) into each position, when you manually change the angle of the CV-joint.

    Hopes this helps you.
    Get In, Sit Down, Shut Up and Hang On!

  6. #6
    Join Date
    Jul 2004
    Location
    ct.
    Posts
    2,581

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    One thing to be cautious of is the shop telling you your shaft or shafts are "out of phase", they are suppossed to be. Different years are different degrees of out of phase, most are 67 1/2*. Get a shop manual to find out exactly what yours is suppossed to be.
    Tom Telesco
    Classic and Muscle Automotive
    465 Glenbrook Rd
    Stamford, CT 06906-1820
    Day Phone 203-324-6045 ET
    NailHead Mini-Starters '53-'66
    Adjustable Roller Tip Rocker Arms - All NailHeads

    "If I can't get it, you don't need it!"

  7. #7
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,323

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    I hear ya Tom. Im a hard guy to BS. I'm very catious about who I bring my stuff to also.

    The guy I brought it to is pretty knowledgeable. He knew right away what kind of car it was as soon as he saw it. I did ask him about it possibly being out of phase. He gave it a look and said it was fine. I also asked him what he thought of the vulcanized rubber in the rear shaft. He said theres no reason to do anything with it as long as Im not racing the car. He did mention that the worn yoke is the reason why I keep destroying the hanger bearing insulators. Any truth to that Tom? I'll know tomorrow what Im in for. I know what its supposed to cost, so I'll know if hes in the ball park with his prices. He's done other work for me so Im fairly confident in his abilities.

    I hope this weekend is nice. Im looking forward to taking her out
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  8. #8
    Join Date
    Dec 2003
    Location
    Near Buffalo (a Chebby town)
    Posts
    5,327

    Cool Re: 68 Riviera driveshaft repair- this could get expensive!

    The '66 rear shaft is solid.....no rubber insulator. That's what I used in mine. You'd think all the torque would make the rubber type slip out of phase. If you look closely at them, they do appear to be twisted but I have 4 shafts (3 are '67's with the rubber rear shaft) and they all appear to like that including the solid one from the '66.

    Joe N.

    Never argue with a idiot...they will bring you down to their level and beat you with experience!

    '67 Riv GS w/Dual Quad 425 ('66 clone?)

    Past Buicks:
    '66 Riv GS
    (driven 200k miles and rusted badly)
    '69, '70 & '71 Skylark 350's
    (former daily drivers)

  9. #9
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
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    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    Update-
    picked up both shafts today. He said that he was initially going to just swap the flanges. But when he took it apart, he found out that the 69 pinion flange has a cup and the 68 has a ball. So they didnt interchange. The 68 manual does show the flange having a ball on the end and the 69 is here on my desk in front of me and it does indeed have a cup on it.

    So what he did was cut the rear CV off my screwed up shaft and weld it to my good 69 shaft. He then re balanced it. He charged me 75.00.

    He said that if I wanted to , in the future he could repair the bad shaft. He said he gets 175.00 a CV to rebuild. Thats including parts and labor. Another 130 for the hanger bearing and insulator. Plus a new slip yoke, plus labor. It could theoretically cost me $700.00 or more to repair the bad one.

    I'll take the 75.00 repair for now

    I cant wait to try it out. Its going to be great driving that car with a good driveshaft in it finally
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  10. #10
    Join Date
    Dec 2003
    Location
    Near Buffalo (a Chebby town)
    Posts
    5,327

    Cool Re: 68 Riviera driveshaft repair- this could get expensive!

    Quote Originally Posted by buick64203 View Post
    It could theoretically cost me $700.00 or more to repair the bad one.

    Joe N.

    Never argue with a idiot...they will bring you down to their level and beat you with experience!

    '67 Riv GS w/Dual Quad 425 ('66 clone?)

    Past Buicks:
    '66 Riv GS
    (driven 200k miles and rusted badly)
    '69, '70 & '71 Skylark 350's
    (former daily drivers)

  11. #11
    Join Date
    Feb 2002
    Location
    Twin Cities, MN
    Posts
    6,432

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    $75.00, that's reasonable.
    $700.00 WOW!

    I'm thinking back 25 years, but, I must have switched the entire cv joint to make it work.
    you jogged my memory when you pointed out the differences with the cv joint.
    Dale

    Current Buicks...None. :-(
    Past Buicks. '66 Riv / '70 Rivs (2) / '90 Riv / '72 Skylark / '72 LeSabre / '72 Electra / '96 LeSabre / '92 Park Ave. / '96 Riviera.

    "The guy who invented the first wheel was an idiot. The guy who invented the other three, he was a genius.". Sid Caesar

  12. #12
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,323

    Default Re: 68 Riviera driveshaft repair- this could get expensive!

    Just doing some quick math..

    175.00 a CV joint to rebuild
    130.00 for the bearing and insulator
    I paid 75.00 on Ebay for the slip yoke
    60.00 to balance
    and you have to figure another 100 bucks or so for a new solid rear shaft and misc labor

    adds up fast!
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

 

 

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