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The Good, Bad and Ugly on a Rear Suspension Alignment

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  • The Good, Bad and Ugly on a Rear Suspension Alignment

    So I am finishing up a rebuild and restore on a 1973 TR6. I have been fighting a ride height issue for a while....so I decided to get new rear bushings and springs.
    So ride height was 27 3/8" (ground to fender lip) on the RR and 28 3/8" on the LR. So I installed a new LR spring, added a spring collar (now have two) and bushings, and now the ride height is almost 29" and the LR wheel looks terribly toed in. I haven't even looked at the camber! Have not touched the RR yet. I didn't notice any problem with toe-in before. So my question is of the day, "What is the relationship between toe-in, toe-out and ride height?" Thx for your help. This site has been fantastic in helping me put this entire car back together! Scott in CA
    1973 TR6

  • #2
    Hey Scott, I have a '74, I installed Good Parts adjustable swing arm brackets, with factory number of shims, new springs with 3/4 aluminum spacers and polyurethane bushings, I run my tires at @28psi rear and have a ground to center fender lip height of @ 27 13/16 inches. The brackets were easy to install, there are several suggestions on how to get the proper camber. When I took my car to the alignment shop they said it was dead on. They adjusted the toe by removing/adding the shims. I would get everything aligned and then see what your ride height is. Good luck. John Mack

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    • #3
      Here's some easy reading compliments of the Buckeye Triumph site (which has undergone a radical redo recently?!)

      https://static1.squarespace.com/stat...Suspension.pdf
      https://static1.squarespace.com/stat...n+Geometry.pdf

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      • #4
        I’m a little skeptical of measuring ride heights at the fender lips as it makes the big presumption that the car body is square. It might be better to measure frame height from garage floor on each side.

        is my thinking wrong here?
        SR
        73 TR6. HT/AC/OD
        86 930
        91 535i

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        • #5
          Ted Schumacher is pretty good at knowing about TR6 suspension and ride heights...right, Irv ?
          You might give him a call.
          http://www.tsimportedautomotive.com/index.html
          Driving a 1973 TR6
          Doing ZS carb repairs
          email kencorsaw"at"aol.com

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          The Good, Bad and Ugly on a Rear Suspension Alignment

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