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HOMESERVICE MANUALSLEXUS1999SC 400REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 9 (3.0L 6-CYL)REMOVAL & INSTALLATIONENGINEINSTALLATION
1999 Lexus SC 400

Removal & Installation: Engine: Installation

1999 Lexus SC 400SECTION Installation
WARNING: This page is about a different car, the 1998 Lexus SC 300, 1998 Lexus GS 300, 1997 Lexus SC 300, and 1997 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. To install, reverse removal procedure. Ensure transmission crossmember is installed with front mark (L6) facing front of vehicle. Front mark is stamped on top of crossmember and should be positioned on driver's side of vehicle. Ensure front mark is facing upward (toward body).
    CAUTION: Install drive shaft center bearing so bracket on center bearing is parallel to drive shaft.
  2. Before installing drive shaft, apply grease to center bushing located in companion flange, on drive shaft. Ensure reference marks on drive shaft companion flanges are aligned.
  3. Install NEW nuts when installing exhaust pipe components. Tighten fasteners to specification. See TORQUE SPECIFICATIONS . Adjust fluid levels, control cables and shift linkage (if necessary).
NOTE: Remove engine and transmission as an assembly.


  1. To install, reverse removal procedure. Install NEW nuts when installing exhaust pipe components. Ensure reference marks on drive shaft companion flanges are aligned.
    CAUTION: Install intermediate drive shaft center bearing so bracket on center bearing is parallel to drive shaft.
  2. Tighten fasteners to specification. See TORQUE SPECIFICATIONS . Adjust fluid levels, control cables and shift linkage (if necessary).
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.