The ECU for the tranny has what is call adaptive memory, which may be off a little. Twice over the last 4 years, I have had mine reset and the tranny goes right back to shifting like a new one. Now I am not saying this is the case with yours, but a possibility.

 

Thanks to all for your replies!

oilsptLR - Wow, your shift points are a lot higher than mine going into 3rd and then 4th.

Drowssap - I will run it in sport mode on my way home this afternoon and note any changes in the shift points.

DiscoMike - How does the transmissions "brain" get reset? Is this a dealer item or would disconnecting the battery for a period of time cause the system to "re-learn" its shift points?

It seems like this may be a normal occurance for the Disco transmission but it has definately changed the "feel" of how my truck shifts and I just wanted to make sure that there wasn't something major going on.

Thanks again to everyone!

 

A dealer or shop with a test book or something similiar would have to be used to reset the adaptive memory.

 

Thanks for the response DiscoMike.

Could/would a bad XYZ switch cause this type of symptoms?

Thanks