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Trailing arm info

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  • Joseph W.
    Very Frequent User
    • February 20, 2022
    • 399

    Trailing arm info

    1971 coupe LS5 454/365hp
    1969 coupe L71 427/435hp
    1969 coupe L89 427/435hp
  • Patrick H.
    Beyond Control Poster
    • December 1, 1989
    • 11698

    #2
    Re: Trailing arm info

    Who is going to rebuild them?

    The bearing supports and other pieces are where I would look. Those are the parts that might be reused in a rebuild.
    If you send them out to Bairs, for example, there is a high chance that the arm itself will be bent or too rusty to use, and be replaced anyway.
    I would bet that if you asked Bair's they would agree that they replace more arms than they reuse.
    Vice-Chairman (West), Michigan Chapter NCRS
    71 "deer modified" coupe
    72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
    2008 coupe
    Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

    Comment

    • Gary R.
      Extremely Frequent Poster
      • April 1, 1989
      • 1808

      #3
      Re: Trailing arm info

      Salvage yard arms. May be ok or maybe junk.

      The arms rot from the inside out, they're just overlap c channel and bend as well. Many times they're bent by alignment guys.

      There should be no separation at the seams and back overlap.

      If they are complete then possibly the axles, brackets, and supports are still good. There is a date code on the supports, the arms had white ink stamped date codes on some of the years. Any 65-82 arm will bolt in, the 82 had 4 small holes on the inside for a shield install. The 63-64 arms will bolt in too but don't have the bump stop or cable bracket welded on. The dimension is the same.

      If they have been left out in the weather that's not a good sign.

      The USA made bare arms are better made than the originals. The welding is much better, they come with the bushings installed, spring cup and cable guides installed. They are powder coated so that is not correct, but a scuff and coat of satin black works.

      Bottom line they need to be inspected. I wouldn't pay much for them and would waste time or money if any separation is found.

      Comment

      • Joseph W.
        Very Frequent User
        • February 20, 2022
        • 399

        #4
        Re: Trailing arm info

        Originally posted by Patrick Hulst (16386)
        Who is going to rebuild them?

        The bearing supports and other pieces are where I would look. Those are the parts that might be reused in a rebuild.
        If you send them out to Bairs, for example, there is a high chance that the arm itself will be bent or too rusty to use, and be replaced anyway.
        I would bet that if you asked Bair's they would agree that they replace more arms than they reuse.
        I was going to use Bairs.
        1971 coupe LS5 454/365hp
        1969 coupe L71 427/435hp
        1969 coupe L89 427/435hp

        Comment

        • Joseph W.
          Very Frequent User
          • February 20, 2022
          • 399

          #5
          Re: Trailing arm info

          Originally posted by Gary Ramadei (14833)
          Salvage yard arms. May be ok or maybe junk.

          The arms rot from the inside out, they're just overlap c channel and bend as well. Many times they're bent by alignment guys.

          There should be no separation at the seams and back overlap.

          If they are complete then possibly the axles, brackets, and supports are still good. There is a date code on the supports, the arms had white ink stamped date codes on some of the years. Any 65-82 arm will bolt in, the 82 had 4 small holes on the inside for a shield install. The 63-64 arms will bolt in too but don't have the bump stop or cable bracket welded on. The dimension is the same.

          If they have been left out in the weather that's not a good sign.

          The USA made bare arms are better made than the originals. The welding is much better, they come with the bushings installed, spring cup and cable guides installed. They are powder coated so that is not correct, but a scuff and coat of satin black works.

          Bottom line they need to be inspected. I wouldn't pay much for them and would waste time or money if any separation is found.
          Good stuff Gary, thank you!
          where are the USA arms sold?

          I think the salvage yard said $125 each?
          1971 coupe LS5 454/365hp
          1969 coupe L71 427/435hp
          1969 coupe L89 427/435hp

          Comment

          • Leif A.
            Extremely Frequent Poster
            • August 31, 1997
            • 3658

            #6
            Re: Trailing arm info

            Originally posted by Joseph Westbury (68953)
            Good stuff Gary, thank you!
            where are the USA arms sold?

            I think the salvage yard said $125 each?
            Joseph,
            Yogi Bair's Corvette sells the USA made trailing arms ($189 each side). Not to be confused with Baer's Brakes.

            Corvette parts and services for all years, specializing in 1963-1982. 40+ years experience. Located in Linesville, PA. Same location since 1970.
            Leif
            '67 Coupe L79, M21, C60, N14, N40, J50, A31, U69, A01, QB1
            Top Flight 2017 Lone Star Regional

            Comment

            • Patrick B.
              Extremely Frequent Poster
              • August 31, 1985
              • 2017

              #7
              Re: Trailing arm info

              For restoration purposes you will want to keep your original spindles and spindle supports if possible. The spindle supports have casting dates, and the spindles have a variety of symbols visible thru the center hole of the wheel indicating that they are for a big block.

              Comment

              • Patrick H.
                Beyond Control Poster
                • December 1, 1989
                • 11698

                #8
                Re: Trailing arm info

                Originally posted by Patrick Boyd (9110)
                For restoration purposes you will want to keep your original spindles and spindle supports if possible. The spindle supports have casting dates, and the spindles have a variety of symbols visible thru the center hole of the wheel indicating that they are for a big block.
                Vice-Chairman (West), Michigan Chapter NCRS
                71 "deer modified" coupe
                72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
                2008 coupe
                Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

                Comment

                • Keith M.
                  Very Frequent User
                  • January 17, 2021
                  • 695

                  #9
                  Re: Trailing arm info

                  Gary R did a full rebuild on my original arms assemblies. One arm was too bent to use. Got a used bare arm from Bair's for $100 or so. I went that route cuz I wanted original look..ugly welds and all. If you strike out getting an original pair...Bair's new ones are reputed to be good. HIGHLY recommend Gary if you are looking for someone to rebuild yours.
                  ***************
                  late Oct 1969 L46 350/350, M21 4spd, 3.70 posi convertible --As with life, restoration is a journey, not a destination. Though restored cars provide both journeys AND destinations!

                  Comment

                  • Joseph W.
                    Very Frequent User
                    • February 20, 2022
                    • 399

                    #10
                    Re: Trailing arm info

                    Originally posted by Patrick Hulst (16386)
                    This is assuming he has them.
                    If he does, I can’t imagine any value in getting trailing arms from a salvage yard.
                    The car is together with the original TA’s.
                    At some point the body will be lifted and then everything will be getting rebuilt.
                    I was thinking I’d buy a good used set and have them rebuilt ready to go.
                    1971 coupe LS5 454/365hp
                    1969 coupe L71 427/435hp
                    1969 coupe L89 427/435hp

                    Comment

                    • Harry S.
                      Extremely Frequent Poster
                      • July 31, 2002
                      • 5349

                      #11
                      Re: Trailing arm info

                      Originally posted by Joseph Westbury (68953)
                      The car is together with the original TA’s.
                      At some point the body will be lifted and then everything will be getting rebuilt.
                      I was thinking I’d buy a good used set and have them rebuilt ready to go.
                      Joseph, I had to replace the TA's on my 63. Someone in the past put on 65 and newer arms that were rusted. I looked at several used sets and bought a set that I thought was good. NOT, they were rusted and swollen a bit. I should have put the cost in a new set instead of the recycling bin.

                      I bit the bullet and bought a new set from Bair's. I suggest, just buy a new set.


                      Comment

                      • Joe L.
                        Beyond Control Poster
                        • February 1, 1988
                        • 43290

                        #12
                        Re: Trailing arm info

                        Originally posted by Harry Sadlock (38513)
                        Joseph, I had to replace the TA's on my 63. Someone in the past put on 65 and newer arms that were rusted. I looked at several used sets and bought a set that I thought was good. NOT, they were rusted and swollen a bit. I should have put the cost in a new set instead of the recycling bin.

                        I bit the bullet and bought a new set from Bair's. I suggest, just buy a new set.
                        Harry------


                        Yup! Unless one knows the COMPLETE history of the car the used arms came off of (which is virtually never known), forget used trailing arms.
                        In Appreciation of John Hinckley

                        Comment

                        • Patrick H.
                          Beyond Control Poster
                          • December 1, 1989
                          • 11698

                          #13
                          Re: Trailing arm info

                          Originally posted by Joseph Westbury (68953)
                          The car is together with the original TA’s.
                          At some point the body will be lifted and then everything will be getting rebuilt.
                          I was thinking I’d buy a good used set and have them rebuilt ready to go.
                          Bair's is fast on the turnaround. You won't have to worry.
                          Vice-Chairman (West), Michigan Chapter NCRS
                          71 "deer modified" coupe
                          72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
                          2008 coupe
                          Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

                          Comment

                          • James W.
                            Extremely Frequent Poster
                            • December 1, 1990
                            • 2679

                            #14
                            Re: Trailing arm info

                            I highly recommend Gary. You won't get the level of rebuild detail at Bairs that you WILL get from Gary.

                            James
                            Attached Files

                            Comment

                            • Mike B.
                              Very Frequent User
                              • July 31, 1994
                              • 843

                              #15
                              Re: Trailing arm info

                              James,

                              I've sent you a PM.

                              Thanks, Mike

                              Comment

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