Rear Axle Identification

It's an 8.75, I know that since i have the removable center chunk from the front (banjo housing). The lines are supposed to be universal for the rear end, so it really wasn't supposed to matter what one it was, but the breather tube / brake t block is on the angled portion of the rear where the tube starts slanting up as opposed to being on a section that is level with the ground (hard to say what I mean, hopefully you get the idea). This seems to be the main issue, the lines appear to be the correct overall length in that they meet up the right distance apart for a T block, it's just that the T block is over an inch or so away from the breather hole. I don't think the company sells any other lines, but I'll double check and see if it could have been packaged wrong. I just want to make sure I'm not the one at fault when I say the lines don't fit right. I want to give the guy the benefit of the doubt, but he's becoming more of a jackass with each email he sends demanding that I change my feedback from neutral since he doesn't think it's his fault.