700R4 and 200-4R can typically be used with minor modifications for most applications. Modifications are usually limited to driveshaft length, crossmember type or position, and downshift cable setup.
The gearing may be bad, the tranny may be slipping, or the fluid and filter may simply need to be replaced. A bad filter and low or bad fluid can cause slipping or lack of shifting.
It depends primarily on the engine in the Explorer, and the engine in the Cougar, and the years of each. If the Cougar is 1989-1997, equipped with a V8 (which would mean the tranny...
From what I understand GM still owns the Pick up truck plant in Baltimore,and the Hybrid electric operations. the remainder is no longer owned by GM.
Allisontech
There is a code stamped on all transmissions find the number on the side or inside the bell houseing area. or just call auto zone . year make and model