F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
OSS sensors will occur.
Remove the rear transmission mount.
1
Raise the transmission up off the rear crossmember support.
2
Remove the bolts.
3
Remove the rear transmission mount.
7. Remove the transmission extension housing.
1
Remove the bolts.
2
Remove the transmission extension housing.
8. Remove and discard the extension housing gasket.
Installation
1. CAUTION: The extension must have a shoulder or a boss cast in it to hold the orifice lube plug in the back of the case. If the wrong
extension housing is used the plug may become loose and/or fall out and cause transmission damage.
NOTE: Lightly lubricate the gasket with petroleum jelly to hold it in place during assembly.
Install the new extension housing gasket.
1
Verify that the extension has a shoulder cast in it.
2
Install the new extension housing gasket.
2. Install the extension housing bolts.
