Are all TrailBlazer SS models Full time AWD?

[c good]

Like the problematic Saab's?

 

[Mike534x]

The SS came in AWD or 2WD. AWD models were notorious for blowing up the transfer case though from the torque output, or another flaw with all the models was the oil pan design allowing the pump to suck up air on hard launches leading to spun bearings.

 

[Mooseman]

Yep, it was available in 2WD and may be more desirable. From what I read, you couldn't install headers on the AWD version.