way different tranny, the tranny in the 89 is a normal hydrallicly controlled zf 4hp22, the 91 and up 525 has the computer controlled chevy, you way just be able to swap the codeing plug on the back of the cluster with your old one and make it happy

Originally Posted by
KFY
Thanks for your advice first. I am wondering if it is caused by different model of E34 since the problem occurs after the dashboard replacement. The gear of my 89 one is P, R, D, 3, 2. Is it same as that of 92?
all america wants is cold beer warm cat and a place to take a poop with a door on it