In order for it to work in your car it needs the 1 1 16 dia.
Rug em transmission.
The toploader s popularity is a credit to its strength with some race car engines turning at almost.
This transmission looks just like an early toploader but it is not a performance transmission at all.
The toploader 4 speed was coded heh and later rug.
Top loader 4 speed o d rug rts and t 170.
The srod also.
It was to replace the borg warner t 10 4 speed.
On the passenger side at the front edge of the maincase there is a small metal tag with a heh or rug number.
The pulldown list only offers rug e not rug em like it actually is.
Tremec 3 speed parts list tremec 4 speed parts list click below images to enlarge.
The rug e e1 e2 e3 were used on 67 69 mustangs but nothing regarding the em.
The toploader gets its name from having an access cover on the top of the main case as opposed to the t 10 s side cover entry.
The casting numbers on the main case or tailhousing start with d7dr for 1977 model.
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.
Aftermarket toploaders are still used by many circle track racers including nascar.
These transmissions look like the toploader at first glance but only use a four bolt mounting flange.
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.
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.
The tag rug em throws me a little because i don t see a reference for a tag number of that.
Ford introduced new style toploading 3 and 4 speed transmissions in 1964.
The transmission would also garner other pseudonyms like.
These non toploader units carry codes of rug cl rug ca rug cd or rug bp on the tag.
The srod is an all aluminum cased transmission.
This car version of the transmission was commonly referred to as the rug.
Rug bp rug ca rug cl rug cd.
10 spline input shaft of the correct length a preferable 28 spline output shaft and a tail shaft.
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 toploader has been designated as a model t 170 or an heh or rug transmission based on the designations ford gave to it through its years of production.
Maybe thats the issue.
