280sl shift problem

I have a 1969 280sl. I had to replace the trans shift module because it did an upshift/downshift/upshift etc between 3rd and 4th at speeds below 40. now it won't shift into 4th until I reach 65 . I don't see any adjustment on the module. how can I fix this? thanks

[autozen]

What module are you talking about on the K4A-025 transmission?
Peter