Yeah. I'm only noticing an rpm jump (although really slight at around 65 mph.

What about on your fords? were they different? or do you remember?

Come to think of it they were pretty much the same

I thought sean told me different. How much should the tc lock up drop the rpms>? I klnow theres a dynaflow takes place and I always thought it was the tc.
Either seans confused or he's confused me. Pat is correct tc lockup should be last.
Is your TC locking up? You should see a several hundred rpm drop even on a diesel. I go from 1800 rpm at 42 mph to like 1200 rpm when the tc locks.

I thing the gear change is about 750 and the t/c like 250. When i'm on the highway ( 60 -70 -80 whatever ) the shift from 3rd to 4th +t/c will generally drop 1000 rpm. My 97 will lock up the t/c when it shifts to 4th.

Lt.Dan, i will be in Tulsa sunday if you want i could bring the the box with me so we could hook it up and see what it's doing.