O.K. gear experts< Why does my rig defy the charts and formulas??

[reamer]

I does shudder accelerting form a dead stop, (especially starting up a hill) this may be "the slip"??

 

[av bronco]

I does shudder accelerting form a dead stop, (especially starting up a hill) this may be "the slip"??

Sounds like your low clutches are slipping, that has nothing to do with your third gear rpm. I think thats where your rpm should be and a new t.c. isnt gonna make any change.

 

[Socal Tom]

All automatic transmissions have some torque convertor slip, unless they are designed with a lock up torque convertor, like the 4r70W. Its completely normal for auto trannys to have a slightly higher rpm at highway speeds vs stick.
Tom