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Dashboard Conversion 700

posted by  badge988 on  Fri Apr 15 13:48 CST 2005
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Well its coming to a point of where my cracking OEM dashboard has become more than an eyesore. Just like most other early 700's it has split down the middle from the defroster vents and down to the hood for the cluster. I went shopping at several different wrecking yards to find that all the dashboards have the same issues except a blue one and that wouldn't fit my interior. My question is would a dashboard from an early 90's car with the correct cluster fit in place of the earlier dashboards in terms of fit or are the mounting holes in different places? Instrumentation will have to be adapted and I would imagine a few heater ducts might also need to be changed but that aside Im curious if the dashboard itself would be compatible in terms of fit. The ones Im refering to are the "sloped" dashboards with the angular cluster hoods.


Ideas or thoughts? I know this is going to be a big job however I don't care for those stick on covers.

Thanks guys in advance

Badge988








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    Dashboard Conversion 700

    posted by  john sargent on  Fri Apr 15 15:57 CST 2005
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    last visit: Wed Oct 22 09:07 CST 2014
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    I believe the chassis is the same. The 1991+ dash should fit your early car. To connect the instruments, you'd need the wiring diagrams from both cars.

    The big problem would be the speedometer. Your early car has a 12 pulse tone ring, and the late car has a ABS tone ring with about 96 (or 108) pulses. In my experience, the two sytems are not compatible even if the pulse count was the same. If you had an ABS car, the instrument cluster conversion should work, but not on your early non-ABS car.

    If you could transplant your early speedometer in the late cluster, you'd be good to go.

    We installed an ABS rear end from a 1991 940T in my son's 1984 760T for a couple of months. I even got the factory signal convertor from a late 1987 740T, and I never could get the speedometer to work. We went back to the 3.54 ratio stock rear end in order to have a working speedometer.
    --
    john








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    Dashboard Conversion 700

    posted by  Andrew in AL on  Fri Apr 15 14:33 CST 2005
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    last visit: Fri Oct 24 06:17 CST 2014
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    I would bet that many later models would work. Just the pain of actually changing it out!!
    --
    "Be blessed in your quest'' 89 764 (110K), '94 940T (180K) , '92 745T (totaled 2-10-05 RIP)







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