i'm getting ready to order a new shifter boot, clutch , h.d. pressure plate bolts, and flywheel from marlin crawler. i want to order the h.d. shifter seat. do i need to order the shifter socket too? i also wanted to know if i should order the master and slave cylinders? am i forgetting anything? thanks for the help.

I would order thoses items its better to be safe than sorry and if its from marlincrawler you know its top quality

get 2 shifter seats, one for the tranny, one for the transfer.

get the shifter socket

If you are going to mess with the master and slave, do them both simultaneously for ultimate reliability