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Tahoe / Yukon Service Manual

Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH)

Automatic Transmission - 10L80 MHS MQC | Repair Instructions - On Vehicle | Document ID: 5596456 Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) Single Use Fasteners and Components Automatic Transmission Case Extension Seal Exhaust System Seal - Left Side Exhaust System Seal - Right Side Propeller Shaft Transmission Flange Fluid Seal Transfer Case Front Output Shaft Boot Clamp Transfer Case Adapter Gasket Special Tools Automatic Transmission (MQC) DT-45000 Seal Remover J-38869 Seal Installer Equivalent regional tools: Special Tools Removal Procedure

  1. Transfer Case Assembly » Remove — Transfer Case Assembly Replacement
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 1
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 1
  1. Transmission Mount Bolt (1) » Remove [2x]
  2. Transmission Mount (2) » Remove
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 2
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 2
  1. Automatic Transmission Case Extension Bolt (1) » Remove [6x]
  2. Automatic Transmission Case Extension (2) » Remove
  3. Automatic Transmission Case Extension Seal (3) » Remove and DISCARD
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 3
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 3
  1. Using the DT-45000 Seal Remover  (1), remove and DISCARD the propeller shaft transmission flange fluid seal (2). Installation Procedure
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 4
Propeller Shaft Transmission Flange Fluid Seal Replacement (4WD with NQH) — figure 4

  1. Using the J-38869 Seal Installer  (1), install a NEW propeller shaft transmission flange fluid seal (2).

  2. Automatic Transmission Case Extension Seal (3) » Install NEW

  3. Lubricate the inner diameter of the transmission output shaft seal with NEW transmission fluid prior to installing the automatic transmission case extension. Adhesives, Fluids, Lubricants, and Sealers

  4. Automatic Transmission Case Extension (2) » Install

  1. Automatic Transmission Case Extension Bolt (1) » Install and tighten in sequence [6x] — Fastener Specifications

  2. Transmission Mount (2) » Install

  3. Transmission Mount Bolt (1) » Install and tighten [2x] — Fastener Specifications

  4. Transfer Case Assembly » Install — Transfer Case Assembly Replacement

  5. If necessary, check the transmission fluid level and condition. Transmission Fluid Level and Condition Check