300M 2-Piece Output Shafts
These new heavy duty output shafts feature a unique 2-piece design with an extended bearing
surface. They are gun-drilled to save weight with no governor or speedometer support. A “must have” for your T-400 when high horsepower meets heavy weight or rear gear is numerically
low. This strong, affordable option is easily installed and can be purchased outright or as an
upgrade option in your next ATI 400 transmission.
T400 300M Output Shafts *
STANDARD LENGTH (6”) - 300M MATERIAL
POWERGLIDE LENGTH (8.5”) - 300M MATERIAL
4X4 LENGTH (6.250") - 300M MATERIAL
4X4 LENGTH (5.250") - 300M MATERIAL
* No speedo or governor supported
4L80E / 4L85E 300M Output Shafts *
2-PIECE OUTPUT SHAFT - OEM LENGTH - 8.107"
2-PIECE OUTPUT SHAFT - 6.260" - SHORTENED FOR USE WITH T400 EXTENSION HOUSING
* Reduces the overall length of the 4L85E by 1.847, requires use of a T400 4” extension housing, Part #701935.
T400 4340 Forged Output Shafts
Made from Forged 4340 Material
Brand new replacements
OEM T400 length
Extra long splines with markings for custom length modifications
Can be cut to Powerglide length or 4x4 length
Accepts standard speedometer gears
No provision for OEM governor
Part # 406027
ATI's new T400 output shaft is made from forged 4340 steel to handle anything thrown at it!