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  1. #1

    Question Is it a 3 or 4 speed?

    I tryed to purchase a transmission filter for my 1990 GMC V2500 4x4. Apparently, this Suburban came with either a 3 or 4 speed tranny. Since I just bought it and have not driven it, I chose the 4 speed filter. However, I went out for a ride this afternoon (finally got it registered) and I could only count 3 speeds. Does anyone know for a fact what type of transmission I may have? I have a 5.7 engine on it. By the way, 5.7 ltr is equal to what....a 318, 350, etc?

  2. #2
    Sr. Apprentice
    Join Date
    Jul 2007
    Location
    S.W. Florida
    Posts
    46

    Default

    The 5.7 is a 350, very durable motor.

    The shift indicator on the column will show either PRND21 0r PRNO321 with the O being OD.
    93 Suburban 2500, 454, 4x4 tow vehicle
    77 Trans Am, 9 sec pump gas street car, Pontiac Power

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