Here is some info on the truck: 3" body, 6" rcx suspension, 2" bilstein leveling struts, 40" toyo's. I had this setup with the original axle housing for approximately 6,000 miles with absolutely no issues. The original axle housing cracked under normal driving conditions. Newly installed (used) axle housing only survived about 14 miles before it ended up cracking worse than the other one. I took my truck to the shop that installed the suspension lift and I was told that it was most likely my passengers side cv putting just enough stress on the axle tube to cause this issue. I was told that everything else appeared to be fine. I called rough country in regards to the issue. I was told that the relocation brackets for the front diff do not relocate the front diff to the same angles as stock. I was advised that the angles from the 6" kit are similar to the angles that you would get with a standard 2" lift spacer. So basically I have that angle x2 because my bilsteins give that extra 2 inches. I just do not understand why the original housing lasted for 6k miles before cracking. Maybe I just got lucky? I looked into some Kore high angle cv's which run $800 for the pair. I came across a post from another forum from a guy who has a 6" lift and the bilstein leveling struts at 2". He has the Kore high angle cv's and has not had any issues. Until I can get the funds for those high angle cv's I am going to have another axle housing installed, but I am not going to put the passengers side axle back in.