So I bit the bullet and purchased these today after breaking my 2nd axle. Taking off the old axles there is a set screw and pin that locks the axles onto the diffs. The MIP's use the 2 small set screws only with no pin in the middle? Also I ended up using blue loctite instead of red. Should I change that to red? Other than that they seem near indestructible and add some stability to the truck.