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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 4.3L (LV1)) >> Repair Instructions >> Automatic Transmission Flex Plate Installation

Automatic Transmission Flex Plate Installation

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Fig 1: Automatic Transmission Flex Plate And Bolts With Tightening Sequence
GM4806742Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Flex Plate
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 tighten ing process.
2 Flex Plate Bolt [8x]
CAUTION:

This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

CAUTION:

Refer to Fastener Caution .

Procedure

  1. tighten the engine flex plate bolts (1 - 8) a first pass in sequence to 15 N.m (11 lb ft).
  2. tighten the engine flex plate bolts (1 - 8) a second pass in sequence to 30 N.m (22 lb ft).
  3. tighten the engine flex plate bolts (1 - 8) a final pass in sequence an additional 45 degrees using EN-45059  angle meter.

Use NEW bolts.
Special Tools 
EN-45059  Angle Meter
Equivalent regional tools:Special Tools .
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