It would seem I'm just the guy to chime into this discussion. I bought my TJ with a dana 35 axle and 35" tires. I did not know much about Jeeps back then and did not realize how bad I was fucking up. It broke an axle shaft literally right after I shook with the guy and paid him. (more pictures of my journey on my insta @2bfabrications btw)
View attachment 531489
View attachment 531490
I bought a super 35 kit, and attempted to install it, however, from have the axle shaft break and walk out, the housing was bent. I managed to get it back together, but because of the bent axle housing, the detroit locker almost always stayed on. after a few weeks it made a crunchy noise when I was taking a turn then the locker didn't function at all. So yeah it was a waste of 1200$ (in my situation) I rode on my broken super 35 for a few months before starting the 8.8 swap (my jeep used to be my daily)
Now for my 8.8 build, I got my axle for 250$ at pull a part. U joint adapter was like 50$. Bracket kit was 150$ (no truss) Ran my own brake lines. Had to buy a different parking brake cable I think it's a wj one or something. But it was like 50$. So about 500$ for an axle that even in its stock form is pretty much as strong as a dana 44. If you can do the welding and wrenching yourself, it is much cheaper to put a 8.8 in than to build a super 35, and while I'd prefer a Dana 44, they're very expensive and hard to find in my experience.
I lucked out and found a freshly rebuilt 8.8 at the junkyard. Even had brand new brakes. Took about 2 days to swap the brackets and install the axle.
View attachment 531491
View attachment 531492
I've been riding on this 8.8 for like 2 years now, and haven't had a single issue from it. I've taken my jeep all of the offroading spots around me and to Choccolocco Mountain in alabama which has some very gnarly trails and I've not had any issues out of the rear axle. Soon I'm going to be installing 4.56 gears and an ox locker into this 8.8. I also have an anti rock sway bar and plan to fab up some rock sliders. I'm very excited to take my Jeep to the next level.
View attachment 531493