[DHPmike]

On a performance arm the structure and weight are important but they are also equaled by the bushings you use. If you want to use the truck for autocross or pro touring you can also go with heim joints. If you want to stay with poly then I suggest Energy Suspension Graphite Impregnated polyurethane. Great road feel without feeling every pebble.

On an upper tube arm adjustable ends would help for autocross or pro touring since you can adjust in more negative camber at the track easily without losing your street alignment.

On a Lower for this application you may want to go with something that has several holes in the lower for a coilover or one that has a spring cup and a coilover mount that bolts into the spring cup.

Then theres sway bar tabs or none, shoch tabs or none etc.

Many options are available in custom built arms. If you want to stick with something off the shelf you will have to do more research into whats available in options.