I just bought an 04 transfer case shifter for my 01 disco 2. There's an interlock solenoid on the 04 shifter. I should remove this prior to installation, right? I also have an issue with the low range solenoid on the transfer case. It will currently not shift into low. So, since I need to be in that area to do this job I might as well install the linkage to have the locking dif. Any tips for getting access to all the screws for the solenoid cover? It appears to be a real bitch to get them all out.