85 Suburban, NP208 / 700r4 / factory auto hubs. I pulled the rear driveshaft and put the t-case in neutral and flat towed the truck behind my camper for 200 very bumpy miles. The transmission was in park. I considered pulling the front driveshaft, but didn't.
When I arrived at the campground, I found that the transfer case shifted into 4H, and that the shifter was stuck. The case made all kinds of noise, and wouldn't shift to neutral or 2H regardless of shifter position. With force I could get it into 4L. Days later I climbed under it and saw that something had ejected from the case.
I found a used one on facebook and swapped it out.
All is well now EXCEPT I have no Park in the trans. Have to drop the pan later to see the damage there. Good news is it shifts fine and there are no shavings on the dipstick.
My best guess is that on the bumpy roads, the transfer case went into 4H and that my hubs were not actually unlocked. My wife mentioned that my tires locked up once on the suburban, I'd guess that was when it found park. What do y'all think?
When I arrived at the campground, I found that the transfer case shifted into 4H, and that the shifter was stuck. The case made all kinds of noise, and wouldn't shift to neutral or 2H regardless of shifter position. With force I could get it into 4L. Days later I climbed under it and saw that something had ejected from the case.
I found a used one on facebook and swapped it out.
All is well now EXCEPT I have no Park in the trans. Have to drop the pan later to see the damage there. Good news is it shifts fine and there are no shavings on the dipstick.
My best guess is that on the bumpy roads, the transfer case went into 4H and that my hubs were not actually unlocked. My wife mentioned that my tires locked up once on the suburban, I'd guess that was when it found park. What do y'all think?
