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Automatic Transmission Flex Plate Installation

WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Flex Plate & Bolts
    GM1658140Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The flex plate does not use a locating pin for alignment and will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flex plate bolts. This procedure requires a 3 stage tightening process.

  1. Install the flex plate to the crankshaft.
  2. Apply threadlock to the threads of the flex plate bolts. Adhesives, Fluids, Lubricants, and Sealers 
  3. Fig 2: Identifying Flywheel Bolt Tightening Sequence
    GM63174Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  4. Install the engine flex plate bolts.
    1. Tighten the engine flex plate bolts (1 - 6) a first pass in sequence to 20 N.m (15 lb ft).
    2. Tighten the engine flex plate bolts (1 - 6) a second pass in sequence to 50 N.m (37 lb ft).
    3. Tighten the engine flex plate bolts (1 - 6) a final pass in sequence to 100 N.m (74 lb ft).