Ok so I've been having a weird transmission issue past few weeks. When I'm driving normal it shifts perfectly fine,no issues what's so ever.

When I go WOT it pulls hard all the way till it's about to shift then it doesn't shift and Boggs down to 4k rpm it pulls hard again to redline in the next gear.It does this every gear. (Hopefully this makes sense)

Looked up some posts for some similar issues and changed these parts

1.Conductor plate inside the transmission
2.changed the plug/seals that go into the conductor plate
3.switched out my tcu with a friends and issue still was there

There is no codes in tcu after I switched all this out! Maybe need to drive it more? I've put 100 miles on it since the switch. Still has the issue

Any one have ideas?