Will a 98 Contour xl transmission fit into my 97 Contour SE

SOURCE: 97 ford contour gl, info on transmission pan filter installation?

trans filter can only be replaced by taking the trans apart. absolutely not worth it.

SOURCE: CHECK ENGINE LIGHT CODE 1381

the actual code is "Cam Timing Advance is excessive"
check your cam timing your timing belt may have slipped a tooth

SOURCE: How can I remove an altenator from a 98 ford

Actually it's quite a job. This is the disassembly process in order.
1. Disconnect neg. battery cable.
2. Remove the belt
3.Raise and support car
4.Remove passenger side front wheel and plastic
splash guard.
5. Disconnect passenger side outer tie rod.
6. Remove exhaust Y pipe.
7. Unplug cables and connectors from alternator.
8. Remove the alternator brace.
9. Remove the passenger side half shaft.
10. Remove the alternator mounting bolts and take alternator out through fenderwell.

Reverse steps for installation. I hope this is helpful.
6.

SOURCE: Will a 98 transmission from a Ford Explorer XLT

No, which kind of surprised me!! Depending on the engine and drivetrain, some 1996 transmissions will work.