I will be having my 4K transmission rebuilt soon and was wondering if I could do it myself. I have a bentley but I was wondering if you need any special tools. I had this tranny in my 16V rabbit over the summer and it leaked oil and ground in 2nd and 3rd so I assume it needs synchros. I would also like to put a tall 5th gear in it. How hard are all of these things to do? HWere can I get the synchros and the gasket set? Also would it be better for me to just send the tranny out to someone and have them do it for me? Thanks