Thanks for the inputs.
Is the Dana 50 in the 99 a straight axle?...
It is not the TTB (Twin Traction Beam) front axle is it?
That alone will make me not buy on of the 99-00 trucks.

I am pretty sure it is a straight axle.
So if it is a Dana 50 front, are they pretty strong axles? i.e., could they handle 800 ftlbs and 40" tires without breaking ring and pinion? I know the 10.25 Sterling is ample. But the dana
50 is kinda scaring me.
The bigger turbo of the later 99's and 00's is definitely some good information.