so i was at brake check last night getting my truck aligned and when they were ajusting my camber they took out the spacers that hole the upper controll arms in position and were telling me that if i got the esentrics kit it would hold better... i really havent found it anywhere and was wondering if anybody knew where i could find one of these kits

 

They are more commonly called camber bolts. Most parts stores sell them for around $40.