Help 3650 Trans Problems

[fordcobra01]

I am having trans problems that I can't figure out. When the trans is warmed up at no load moving the trans is making strange sounds. I have pulled the driveshaft and noticed small grooves on the yoke. Anyone have any clue

 

[madspeed]

Thread moved....

 

[madspeed]

Assumed by your username you have an 01?

 

[jetmech807]

Search TR3650. There is an extensive thread on it.