If I'm going to pull the transmission out to fix a pump problem I'm going to rebuild it so that I've got plenty more miles coming from it. Recommendations on torque convertor? How about stall? For reference my vehicle is a 2004 GMC Sierra 1500 4x4. I use it for light off-roading (10-15% of the time), occasional (10% of the time) towing up to 7000lb GVWR (max limit of trailer plus wheat's loaded on it), and pavement driving (remainder of time). It will probably see some beach driving, too.