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Thread: 67 Lesabre Super Turbine 400 --BU/BT what's the difference

  1. #1

    67 Lesabre Super Turbine 400 --BU/BT what's the difference

    Hey all! I just pulled the tranny from my 67 LeSabre w/a 340-4. It was replaced 40k miles ago at 65K. I'm doing a complete resto as the car has been sitting for 12 years. The Transmission Code ID states BT-67- 123519 which according to the book denotes Wildcat/Electra/Riv. ("BU" is for LeSabre 400). It also has the 430 dipstick! The transmission model designations in the manual shows no difference in components, only different engine displacements. Is the "BT" just a little more heavy duty for the 430 bolted tot the front of it? Drove fine until parked, so should I be concerned?

    Thanks!!

    Tommie
    Last edited by Tommie; 07-15-2011 at 11:41 AM.

  2. #2
    It should be fine as long as they are the same length. There were shore and long tail transmissions ST400s. There might have been some difference in the governor weights that would change where it shifts, but I don't think it would be a big difference.
    Steve B.



    67 GS 525 Buick Stage IV
    66 GS Convertible
    65 GS HT
    63 Riv
    02 Subaru WRX Turbo
    03 Ford Cobra Convertible (Factory Supercharged)

  3. #3

    St400

    Thanks Doc! My dear friend drove this car daily from 1990 to 98 with this "BU" trans mission for 40,000 miles with no issue so you're right on the money!

    Tommie

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