Idler arm straight or curved?

Discussion in 'The whoa and the sway.' started by 71gs3504sp, Aug 20, 2020.

  1. 71gs3504sp

    71gs3504sp Well-Known Member

    I have a 72 GS 455 and like to know which Idler Arm is correct straight or curved?

    Currently it has a straight idler arm but on RockAuto they show both straight and curved for 1972.

    I like to put on the correct one since the one currently on the was a replacement not the original.

    My 72 GS455 was built in Flint, invoice date of January 6, 1972.
  2. 71gs3504sp

    71gs3504sp Well-Known Member

  3. mrolds69

    mrolds69 "The Cure"

    George, far as I know there is only 1 idler arm number for 1972. The pitman arm I think there was one for manual and a different one for PS. A pic of what you have would be helpful.
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Last edited: Aug 21, 2020
    mrolds69 likes this.
  5. mrolds69

    mrolds69 "The Cure"

    Maybe that's what Rock Auto says, the 1972 Buick parts book gives only 1 number.

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