There are at least two ClubFrontier members that have a Titan rear axle on their Frontier...As well as the Titan V8 , Titan front Diff , and Titan front Suspension.
Here are the two build threads:
http://www.clubfrontier.org/forums/f103/vk56-swap-complete-titan-swap-237962/
http://www.clubfrontier.org/forums/f103/sinisterfrontier06-s-build-141705/
EDIT:
Not sure if they used the Titan Steering knuckle though.
Here are the two build threads:
http://www.clubfrontier.org/forums/f103/vk56-swap-complete-titan-swap-237962/
http://www.clubfrontier.org/forums/f103/sinisterfrontier06-s-build-141705/
EDIT:
Not sure if they used the Titan Steering knuckle though.