I have a th400/np203 in an 85 suburban the t-case is stuck in 4hi when I try to shift the t-case it makes a real ugly windygrindy noise. I have the front driveshaft out to keep the front wheels free, but I don't know how long the t-case will last like this. If anyone else has had this problem, please let me know how you fixed it. Also I have a np203 that was mated to a th350, what will I need to mount this on my th400?
Thanx in advance.