This front input 5 pinion planetary carrier will provide 30% more torque thru my 1987 THM700r4. This will drop right into your trans to retrofit into any 1982 - 2005 transmissions for use in the 700r4, 4L60, 4L60e and many 4L65e. Note; pay attention to "Stack-up" height as end play specs may require different thrust washers / Torrington bearings to adjust as needed. This is a must have update for one of the most popular transmissions to complete a bullet proof upgrade to increased horse power to the wild side of racing. A must update for increased life and those who push snow or tow heavy loads.