I play in the mud mostly and some snow. I been using 40's boggers on my 5 different yodas sense 1998. I broke about 4 axle joints in that amount of time. I don't think thats bad. I replaced the broken joints with used ones. But with the stonger joints availble you can get away from the broken axle joints. I have 5.29 V-6 pigs welded front and rear now and have not had any problems with gears. I use to have the 4 cyl pigs and the richmond gears. I broke a set once every two years. Quesition was the gears or the 4cyl carriers. I think it was the richmond gears. I have a buddy that runs 40,s on his yoda with a vortec 4.3 and his truck handles them great. He ran them for 15 years. He also has yoda axles. I think for the added wieght of the 1 ton axles, yoda axles are better. You can update them with so many new parts to gain strength. Also, yoda axles have more ground clearence.