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Thread: Question? Early 633 and 635 speedo difference

  1. #1
    Join Date
    Oct 2017
    Location
    Zagreb, Croatia
    Posts
    62
    My Cars
    '78 633CSi, '81 635CSi

    Question? Early 633 and 635 speedo difference

    Are they any? Are the gears the same? Saw some that to to 240 and some to 260kmh.
    Also what gearbox/diff combo would need to be for a 1978 633 speedo to be correct?

  2. #2
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,482
    My Cars
    1x633, 1x E3 2 DR Racer
    3 speed auto or 5 speed overdrive with a 3.25 sideloader. something around this. Could be a shorter diff to be fair. Maybe a 3.07 sideloader.
    1977 633 CSi RHD Euro. S38B38 3.9L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 417hp, 369lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

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