1994 Chevy Silverado wants to wander

Steering problem
1994 Chevy Silverado V8 Four Wheel Drive Automatic

looking at my truck from the front, I can see that the wheels are toed out. However they are also tilted, top in bottom out. What old or worn parts would cause this. I know it needs an alighnment, but I would like to replace as much components as I can before taking it to the shop to keep cost down. Thanks for any advice from all silverado lovers