I ran a lockrite in my IFS front end from about mid '04-mid'09 with no problems at all. Didn't have a difficulty steering when offroad, and when driving in the snow on the road, didn't have any trouble either. It was definitely a great mod that allowed me to keep my IFS a lot longer than most people do when using their trucks predominately offroad.
I'd say go for it
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
FYI, my setup was 5.29s front and rear, 37 MTRs then 35 BFG MTs, detroit rear, lockrite front, and from '06 or so on, duals. When I went to my SA, the lockrite was working fine, and traded to a buddy of mine, who used it with no problem.