Roofus

here is the parts diagram where I think I see it visually in the image... but when i scroll down the list I dont see axle housing? idk... here is the link to where i was looking at the diagram. https://alpha-sports.com/eton2_parts.htm?fpg=/eton/2005Yukon(YXL-150)/25.htm

Check if you can see the photo now?? Idk what the deal is with my photos not working on here. I tried posting these ones with a different method this time.

idk what keeps happening with the pictures. let me know if you can see these ones

I have looked at the parts manual. Unless I'm missing something (I hope I am, and someone points the part out that is right infront of my face). I just need the aluminum part that appears to house the axle/brake for the rear end. The chain doesn't keep enough tension the way it is right now. I found this quad at the dump and got it running, just need to replace whats broken in the picture.

I cant seem to find what this part is called. Can anyone point me in the right direction? I must be misinterpereting the parts catalog or something? I dont see it in the rear axle section. I think it may be in the rear brake assembly section? click link to view picture. [removed broken image]