Transmission shifts late after 3rd gear, e39 1998 m62b44 automatic

[maldecs]

Hey bimmers! So i recently removed my radiator to flush it through, and after i was done with this, i started the car up again
and it started shifting really late on 3rd gear, at around 100kmh/5000rpm or something it shifts to 4th.

What i know i only removed throttlebody, to get the radiator out. So i dont think i have touched anything that has to do with the transmission? if i didnt forgot some cable???
When i drove the car to my garage it was shifting great, but after i was done flushing, and airing out my system it started shifting very late after 3rd gear


So my question is, what could possibly cause this issue?

Sorry for bad english, it isn't my main language. I would appreciate any help i can get!

-Malde

[maldecs]

ISSUE FIXED, Connected the antispin wire back, and it shifts great again.