Okay I own a 1987 Nissan Pulsar (my uncle gave it to me because he can't afford it) and I have been doctoring it up and it is a nice little car. The shift nob though is old and when it gets warm it gets black all over my hands and I want to change it. The problem is it seems like a lage piece of runnber going down about 10" screwing into the stick it self. I was told you just twish it off but being all rubber it just gives and twists it self. Is there any special way to get it off and put an after market one in. I work at a parts store so I have a load of them and I want to change it. Any help would be appreciated.