Originally Posted by aciuca
am i able to drive my tb home from work about half hour away with little or no oil in the front diff. with making anymore major damage?
The grease can be topped-off without even jacking the vehicle up. Turn the front wheels all the way to the left.
I use a long-handled 1/2" ratchet, a long extension, and an 18mm swivel socket. A regular socket and universal joint would work almost as well.
A pint of grease can be poured or pumped into the differential, if you're willing to crawl on your back.
All of this is preferable to driving the unit with little or no grease. OTOH, as long as you stay out of AWD or 4WD, there's little load on the unit. MAYBE you'd be OK. I wouldn't recommend it, though.
I would NOT drive with the differential empty or nearly empty in one of the Trailblazer cousins that cannot be put into 2WD mode.