well the bolt wont come loose it never did before and the actual mount has tabs top and bottem, so it just slide's in on the inside of the mount and you bolt it up to prevent it coming out, as for up travel it simply doesn't get there it still moves the same as it did before but now it has it's orginal down travel with the same springs. The only time this wouldn't work would be if you made your springs softer to gain more flex or used drop shackels then you would need much longer shocks.