I inquired in the past about aluminum links and how strong they are,this past weekend was a real test. I am running 2.5" solid 6061 aluminum lower links with 1" heims. I was playing at Morris Mountain this Saturday and was attempting the middle of the good,bad, and the ugly. For those that aren't aware of the size of this obstacle it is solid rock with a short steady climb to a rock face thats about 5' tall. My wheel base is around 101" so I have to hit it kind of hard to carry my front wheels over enough so as not to bottom out. Well this time something went wrong and my truck went vertical I quickly let off the throttle and as soon as the front started to fall I quickly reapplied. My rear wheels where near the top so when they spun out, the front came crashing down with the full weight of the truck landing on my front lower links,the front tires where off the ground due to fact that the back side was dug out so my links absorb the full impact. The lower links although ,did bend they did not break and I was able to drive it out. What did break was my front driveshaft from hitting on the rock. The right link bent the least but did crack at the end where the link screws in ,the left link bent the most but it did not break. I was very pleased with the outcome because I believe if I was still running steel links they would have failed.