Need help! Doing 4wd swap on my 2002 lb7, getting a couple codes p0700 and p0742 of something like that clear them and they don't come back for a while all of a sudden started getting a whining noise on acceleration sounds like it's from the transmission put it in neutral and rev it up makes the same noise shifts are really firm and I don't think my torque converter is locking anyone could help me out that'd be much appreciated thank you
