So is Pritchett doable for my rig
I wouldn't take a Suburban on 35's (I assume that's the rig you're talking about) through Pritchett. Its one of the tougher trails in Moab.
http://4x4trails.net/db_view_trail.php?trailNum=216
http://www.4x4now.com/33jspc.htm
We had a K5 on 1 tons and 37's (locked in the rear) run Pritchett with us during Blazer Bash '06 and he had to winch up just about every obstacle.
