727 ID
- Thread starter NewcScout
- Start date
Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
Just about anything you need to know regarding the tf 727 begins with this thread which is stickeed right here:
http://www.forums.IHPartsAmerica.com/transmission-tech/588-torqueflite-727-guapo.html
I've posted complete information in that thread for making a positive id of the 727 variations.
Your transmission in question is a pullout from a 4x4 Scout II running the amc 258 sixbanger motor. The bellhousing is completely different compared to an ihc-pattern bell.
Internally, the 727 for the amc engine was built slightly "softer" and has valve body calibration, along with governor calibration that works best with the power characteristics of that engine. The oem torque converter also was manufactured with a slightly different stall spec.
Also, the balance setup/factor for the amc engine as far as the torque converter and flex plate is concerned is completely different as compared to the same components used behind the various ihc-produced sv engines.
The tailhousing/output shaft system used in the married Scout II applications for either engine are the same however. The bull gear is a 727-specific 23 spline item with a pitch angle of 17.5* that must match the intermediate gear in the d20 transfer case.
http://www.forums.IHPartsAmerica.com/transmission-tech/588-torqueflite-727-guapo.html
I've posted complete information in that thread for making a positive id of the 727 variations.
Your transmission in question is a pullout from a 4x4 Scout II running the amc 258 sixbanger motor. The bellhousing is completely different compared to an ihc-pattern bell.
Internally, the 727 for the amc engine was built slightly "softer" and has valve body calibration, along with governor calibration that works best with the power characteristics of that engine. The oem torque converter also was manufactured with a slightly different stall spec.
Also, the balance setup/factor for the amc engine as far as the torque converter and flex plate is concerned is completely different as compared to the same components used behind the various ihc-produced sv engines.
The tailhousing/output shaft system used in the married Scout II applications for either engine are the same however. The bull gear is a 727-specific 23 spline item with a pitch angle of 17.5* that must match the intermediate gear in the d20 transfer case.