GM Service Manual Online
For 1990-2009 cars only

    Object Number: 33663  Size: SH
  1. Remove the seal housing to the block bolts.
  2. Remove the oil seal housing.
  3. Remove the gasket.
  4. Notice: Properly support the seal housing to prevent damage to the seal during removal. Damage to the seal will result in an oil leak.

  5. Use the following procedure in order to remove the oil seal:
  6. 4.1. Support the oil seal housing for oil seal removal using 2 wood blocks of equal thickness.
    4.2. With the wood blocks on a flat surface, position the seal housing and the blocks. This will allow for the transmission side of the oil seal housing to be supported across the dowel pin and the center bolt holes on both sides of the oil seal opening.
    4.3. Drive the crankshaft seal evenly out of the transmission side of the oil seal housing. Use a small chisel in the relief grooves on the crankshaft side of the oil seal housing.