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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> Transmission >> Manual Trans >> Removal & Installation - M/T >> Transmission Removal & Installation >> All Models Except "S" & "T" Series >> Removal

All Models Except "S" & "T" Series: Removal

  1. On models with 117 MM 4-speed transmission, remove shift lever boot retainer bolts. Slide boot assembly upward on shift lever and remove lever. To remove shift lever, push down on collar and turn counterclockwise.
  2. On all models, raise and support vehicle under frame. Drain fluid from transmission and transfer case (if equipped). Disconnect speedometer cable at transmission.
  3. Remove shift linkage from transmission (if not previously removed). Remove parking brake lever and back-up switch wire as needed. Disconnect drive shaft at transmission.
  4. Remove transfer case (if equipped). See appropriate TRANSFER CASE  removal procedures. Disconnect exhaust pipes from exhaust manifolds as needed. Remove frame crossmember and flywheel inspection plate.
  5. On 117 MM 4-speed, remove top 2 transmission-to-clutch housing bolts and install Guide Pins (J-1126). Guide pins will support transmission and prevent damage to clutch disc.
  6. On all models, remove all transmission-to-clutch housing attaching bolts. Slide transmission straight back until input shaft is clear of clutch hub. Remove assembly from vehicle and remove guide pins (if used).
NOTE: DO NOT  let transmission hang from clutch. Support clutch release bearing when removing transmission from flywheel housing. This will prevent release bearing from falling out of flywheel housing.