"Bolt in" Super 35 w/DetroitThe stock Dana 35 in a Jeep is more than capable that handling mild off roading with stock tires. It becomes an issue when installing larger tires and doing more serious off roading. The major down fall of the Dana 35 Jeep axle is that they have 27 spline axle shafts. Alloy USA has created their Ultimate 35 kit with 30 spline axles. With this upgrade, you have now removed the weak leak in a Dana 35. This is also a better cost effective option instead