please tell me. 1983 AMC Eagle wagon! STOCK 258 motor!
Manual Or Auto?
If you have an Automatic Transmission. It's an AMC or Chrysler 998 which is a variant on the Chrysler torqueflite 904. And service parts, rebuild kits, and valve bodies (manual or automatic) are readily available for.
And if it's a manual 5 speed, it's a Borg Warner T5.
Stock Automatic Series:
Chrysler Torqueflite 998 LOCKUP 3-spd RWD (6-bolts to transfercase)
Floor shifter option
Stock Standard Series:
Borg Warner T-5 5-spd NWC
Hydraulic clutch option
The current day options make both of these look antiquated though they still serve an incredibly convenient purpose.