Hey MackinawMan now is the time to decide your long term plans for the truck.
If you love it forever and plan to keep it another 10 years get the BTS tranny. The BTS is bullet proof If you just want to patch it together which I doubt just replace the seal Tranny maybe OK.
If you want to ensure everything is reliable for the next few years get a rebuild or another 4R100. A 4R100 will last another 100k. Which may meet your needs.
I rebuilt the trannies in both of my prior 7.3 PSD's. funny thing is stock rebuilt only lasted 100K
The big issue is the truck is 15 years old. If I remember the truck was in great condition. How much do you want to invest in it at this point.
