Just curious. What kind of differential is in the Dana 50 TTB axle. Limited Slip, open, etc.

 

open, im 99 percent sure there was no factory option for a lsd on an d50 front

 

IIRC the only factory front LS was in a D44. Look at the door sticker under
AXLE. If you see three numbers (the last number must be a 2), your truck
came with a LS front axle. The first two numbers are the rear axle identifier.
In the example below the gear ratios is 4:10, the front axle is LS.

If the rear axle code begins with a letter then it came with LS

Here's more info:
Automotive What is my Ford rear end ratio, do I have positraction

 

Thanks guys. My tag says C5 which is 4.10 LS for the rear, which I already new. I was just curious about the front, now I know. I wonder why Ford didnt use a LS in the Dana 50, only the 44?