1. Yes the shifter can come apart if needed. I had to take mine apart when I did my body lift. We simply used two pipe wrenches and twisted in opposite directions. It came apart quite easily. It appears to be glued together by some sort of liquid cement. We reglued with some high strenght glue.
As for the boot, im trying to remember what the bottom of the shifter looks like, is it possible to slide in from the bottom?
2. Yes that is from the old shifter seat. You don't need it. But I want to say that you should not use an oem shifter seat. Marlincrawler offers one made of a hard plastic that greatly improves your shifter feel and performance. It will last WAY longer then a rubber one, and its cheaper then oem
As for the boot, im trying to remember what the bottom of the shifter looks like, is it possible to slide in from the bottom?
2. Yes that is from the old shifter seat. You don't need it. But I want to say that you should not use an oem shifter seat. Marlincrawler offers one made of a hard plastic that greatly improves your shifter feel and performance. It will last WAY longer then a rubber one, and its cheaper then oem