[ryan68]

Do, it, you'd have to replace the whole carrier like you said with a new unit. You won't break a shaft, that's BS. Personally, my chunk-o-metal suburban with tips the scales at nearly 8,000 with all sorts of weight added has a full detroit in the back(no disengaging) which is basically the same think as welding. I didn't pay for it, so I'm happy. Never broke a shaft and I wheel the hell out of it and it's locked in the front too with another detroit and it rides on 35's on a D44 and 12-bolt. It's all in the way you drive it. I know a guy that welded a 1/2ton newer chevy IFS and has never broke a CV shaft. And this guy does 4.5 rated trails. What happens when they break is when Jethro from Po-dunk NoWhere decides to weld his axle and has no idea what he's doing. Then it breaks. If you know what you're doing, you're fine. I have personally seen many many many vehicles that are lincoln locked front and rear that are just awesome. I also just bought a spool for my 2wd 68. Gotta love the tire spinnage. GET ER DONE!!!