I can get a Dana 60 Power Lock for $100. It's out of a rear Dana 60 (4.10). I was told I can use it in a front 60 that I'll be putting under my truck. I was also thinking about welding the spiders in the 14 bolt rear. I've heard that having a locked front makes steering difficult to control. Would it be worth getting and installing the power lock? or should I just keep the front open? The specs on the truck are as follows: 4 spd./205, Big Block (maybe a 427-not built yet), 14 bolt rear, Dana 60 front w/ 4.10s, and will be running 38" or 39" tires. It will be run in local mud races and driving around backroads, mudholes, hills, etc... and see a little on road use.