I have a 1996 Explorer with 140k miles, Transmission 4R55E was rebuilt at 100k miles the problem is that between upshifts the engine revs 750 to 1500 rpms before the band engages. The other issue that it shifts to quickly in to overdrive. on long drives it causes an od fault(blinking od light) fluid and filter have not been changed since rebuild.

Any advice would be appreciated