Trevor Clark Hausler

i have a 2006 5.4L XLT. I*t* has dog leg four wheel drive. When you shift I*t* into 4 wheel, high or low, you can feel the gears lower and the truck lurches forward with typical four wheel drive power when gas applied, however the from two wheels are not pulling. When engaged in 4wd, the cv axles turn. So, this led me to believe everything was fine except the hub. So i replaces the hub lock actuators on both hubs but this still hasn’t fixed the problem. There are no noises, everything lights up saying I’m in 4wd only issue is front tires do not spin. Any input would be appreciated.