Rug Em Transmission

The casting numbers on the main case or tailhousing start with d7dr for 1977 model.
Rug em transmission. The t c o d transmission was first introduced during the late 70 s in ford passenger cars like granadas fairmonts and monarchs. On the passenger side at the front edge of the maincase there is a small metal tag with a heh or rug number. Maybe thats the issue. This is a list of tag numbers that decode the transmission.
The toploader 4 speed was coded heh and later rug. The lower number on the tag is the serial number of the transmission in the order it was tagged it has nothing to do with the serial number of the vehicle the transmission is in. The srod is an all aluminum cased transmission. The tag rug em throws me a little because i don t see a reference for a tag number of that.
The tag numbers we know about are. The rug e e1 e2 e3 were used on 67 69 mustangs but nothing regarding the em. The earlier 3 1 od toploader 4 speed late 70 s to early 80 s is much like the older 4 speed toploaders these didn t have od in that the main case and tailshaft are cast iron. This transmission looks just like an early toploader but it is not a performance transmission at all.
In order for it to work in your car it needs the 1 1 16 dia. Tremec 3 speed parts list tremec 4 speed parts list click below images to enlarge. The pulldown list only offers rug e not rug em like it actually is. Rug bp rug ca rug cl rug cd.
Transmission model srod series includes the rug iron case srod aluminum case heh rug 4 speed and iron case rug 3 speed o d rts and t176 units are shown in the following illustration. Ford introduced new style toploading 3 and 4 speed transmissions in 1964. Top loader 4 speed o d rug rts and t 170. This car version of the transmission was commonly referred to as the rug.
The transmission would also garner other pseudonyms like. It was to replace the borg warner t 10 4 speed. 10 spline input shaft of the correct length a preferable 28 spline output shaft and a tail shaft. These transmissions look like the toploader at first glance but only use a four bolt mounting flange.
Aftermarket toploaders are still used by many circle track racers including nascar. In addition the speedometer pickup is on the passenger side of the transmission rather than the driver s side as on all conventional four speed units. The srod also. The toploader s popularity is a credit to its strength with some race car engines turning at almost.