GM Service Manual Online
For 1990-2009 cars only

Service Precautions

  1. Use the following safety equipment as appropriate:
  2. • Safety glasses
    • Safety shoes
    • Gloves
  3. Keep the work area clean.
  4. Keep the tools clean.
  5. Clean the exterior of the transmission before removing parts.
  6. Do not use wipe cloths or rags.
  7. Do not use solvents on rubber seals or plastic/Teflon® thrust washers.
  8. Blow out all of the passages with compressed air.
  9. Clean out the small passages with a fine wire.
  10. Handle the parts carefully in order to prevent damage.
  11. Notice: The assembly of some components will require the use of an assembly lube. Always use J 36850 Transjelâ„¢ or petroleum jelly during assembly. Greases other than the recommended assembly lube will change the transmission fluid characteristics and cause undesirable shift conditions and/or filter clogging.

  12. When installing screws, bolts or studs into aluminum, always dip the threads into transmission fluid.
  13. Lubricate all of the internal parts with transmission fluid during assembly.

  14. Always use a torque wrench for the proper torque.
  15. Recondition damaged or stripped aluminum threads with thread inserts.
  16. Replace all of the gaskets and O-ring seals. Do not use gasket cement or sealers.
  17. Replace the Teflon® and the rubber lip seals only when necessary. Always use the appropriate seal installers.

Inspection Procedure

  1. Inspect the manual linkage for wear at the pivoting points and bent or broken links and rods.
  2. Inspect the following items:
  3. • Seals
    • Gasket
    • O-rings
  4. Check the mating surfaces for the following defects:
  5. • Nicks
    • Cuts
    • Damage
  6. Inspect the snap rings for expansion or compression, distortion, nicks, and proper ring to groove fit.
  7. Inspect the bearings and thrusts surfaces for wear, scoring, and pitting.