Will any overdrive bolt up to torqueflight 727 in 1979 Cherokee?

No, not just any overdrive will bolt up to a 1979 Jeep Cherokee's TorqueFlite 727 transmission. The 727's output shaft and the overdrive unit's input shaft need to be compatible in terms of diameter, spline count, and length. Different overdrive units are designed for different transmissions and even different years of the same transmission might have variations.

To find a compatible overdrive, you'll need to specify the *exact* application. This means knowing the:

* Year: 1979 (you've got that)

* Make and Model: Jeep Cherokee (you've got that)

* Engine: The engine size (e.g., 360 cubic inch, 232 cubic inch) impacts the torque and thus the overdrive unit's requirements.

* Transmission: TorqueFlite 727 (you've got that) – but even within 727s there were variations.

With that information, you can research specific overdrive units that are known to be compatible. You'll likely need an adapter kit, which will need to be matched precisely to the transmission and the overdrive unit you select. Many suppliers specialize in these conversions and can guide you to the correct parts.

Attempting to use an incompatible overdrive unit will either be impossible to install or could cause serious damage to your transmission. Proceed with caution and do thorough research before purchasing any parts.