First of all i have a reman. np 208. It pops out of 4hi every time i put it in and pops out of 4lo every once and awhile,. Any ideas what is causign and how to fix? Next, i have noticed that the floor board above the slip yoke is covered in atf. But there is no atf on the t-case. I think that it is leaking when the drive shaft is moving but the seal doesnt look bad. Any ideas?