i have a stock set of blaster a arms that i when to put on a bike that i am building. i got them put on the bike and notice that the bottom ball joint that holds the spindles on are not threaded for the nut thats held on by the carter pins. like all stock arms that i have seen. both lover ball joints look like the top- to where all four would have to have the bolt that slide threw them side ways to hold the ball joints in place. so my question is what type of spindles am i needing i have never seen a stock set of a arms like this at all for a blaster? thanks