Here's the deal... **Warning: Really Long**
I have a 93 2 dr Tracker 4x4 with a 3" Bodylift. I have been driving it for about 2-2.5 weeks now. We have had very nice weather here for January (unseasonably warm). It went from a high in the mid 60's to the low 20's. Down to like 7 degrees at night. The day before yesterday, I got up went outside to go to work. Got in the trucklet, pushed in the clutch, started it, and it wouldn't come out of first gear. I mean I pulled with both hands and it wouldn't budge. This was the day after our first really cold night. So I let it warm up for about 5-6 minutes. Drive it around the block in first gear. Get back and it still won't come out of first. I let it warm up a bit longer. I shifted the transfer case into Neutral, still won't come out. Rocked the truck back and forth, back into 2wd, back to Neutral, still won't budge. Finally comes out and with a decent amount of force, goes into 2nd. Then it's fine. I wondered if maybe it had water in it and had frozen or something. So last night, I drained the tranny and put in new 75W 90 Synthetic Gear Oil.(my Dad works at Advance Auto Parts, that's what their computer said it called for. Called local Chevy dealer, they said the same thing 75W 90 Synthetic.) Drove it home, drove fine. Woke up this morning, went out, had left it in 2nd instead of first. It did the same thing. WOULDN'T BUDGE!
So I let it warm up to normal temp. then left in 2nd gear. Still wouldn't come out of 2nd. About halfway to work, it finally came out of 2nd, but would go over to 3rd or 4th. After another 30-60 seconds, it went into 3rd/4th. Then after another 30-60 seconds it went into 5th. It really seems like it's freezing, but that doesn't make any sense. It absolutely won't come out of gear until it warms up. Then it's fine. Even with brand new 75W 90 Synthetic. Did the same thing tonite when I left work (Been sitting outside from 9am-6pm. But after it had warmed up (again about halfway home) it came out and got progressivly smoother for the next few minutes. I have asked 3 local tranny guys and no one has ever seen a tranny do this, and I haven't either. I've seen them stiff to shift when cold, but never not want to come out of gear at all. Has anyone EVER experienced anything like this before. I'm baffled....
Any help is greatly appreciated guys, sorry this was so long...
Bryan