I got under the truck today to look at if the previous owner installed the driveshaft coreectly because I was having issues at highway speeds.
I have a 77 f150 4x4. The driveshaft is a two piece and the ends of the driveshaft are not inline with each other. On a two piece do they have to be? If so how do I seperate the two piece driveshaft.

 

what do you mean that "the ends of the driveshaft are not inline with each other"?

 

The ends of the drive shaft are about 90° different from each other. I'm pretty sure there not suppose to be that way

 

I took the pictures as how it is set up on the truck. If there is anyone that could just look at there drive shaft and tell me if this is right and tell me how to take the drive shaft apart.i would really appreciate it.

 

Looking at the driveshaft, I'd say it is out of "phase" I have included this link to help you out.
DRIVE LINE PHASING

To get the driveshaft apart. You will have to remove it. When you have it out, on the end of the female portion of the slip yoke, there is a cap that either screws on or is just pressed on. You will have to remove that cap without damaging it. If it screws on, it should have knurling marks around the outside of it. Once the cap is off, just slide the slip yoke apart and "phase" it as shown in the link I sent. Slide the slip yoke back together, keeping it in phase, reinstall the cap, put the driveline back in and youre done........

 

Hope this isnt a hijack but I changed a rear U joint today in my '76 4x4 F100 and the yoke was attached to the transfer case (I often see them attached to the pinion yoke), I just took it loose from the pinion yoke and slid it out of the slip yoke. Did I do that wrong? I wasnt aware that the slip yoke slid "apart" as in 2 pieces. The cap is just a dust cap, right?Maybe I am misunderstanding you.

 

I just took the DS's apart this weekend. In my case the seal on the slip yoke was a push-on type. I took one look at the condition of the seal and didn't worry about keeping them since I was refurbishing everything anyway. Replacements are available for these seals, I got a couple from Bronco Graveyard. Like any seal, they deteriorate over time. Are you going to replace u-joints as well?
In my case the DS yokes were all phased the same, meaning they were aligned. I put a little mark on the pieces to ensure that they went back together the same. I'm cleaning/painting/replacing everything on them, I was amazed at the slop in all the u-joints.

I also noticed that the slip yoke on yours is up by the transfer case, mine was at the rear axle. I think that the factory installed the DS with the slip yoke by the axle? Not 100% sure, just a comment, but that may be part of the highway issue you mentioned? Dunno.

I have the same DS as you do, but I think its actually referred to as a one-piece even tho it has the slip yoke? The ones that are called two piece have a carrier bearing between front and rear sections like on an extended length vehicle, at least thats what I'm familiar with.
"Before" pics:

 

The OP's ds looks like a 2 piece to me, the first pic shows what looks like a carrier bearing.

 

Bamaf150 you are correct.there is a carrier bearing in the picture.78 peb thanks for the info.I'm going to try to get it out after all this hail stops.