Make life a little easier for yourself....
I learned something a long time ago. Just when I think I know what I'm doing, I suddenly realize I'm not as smart as a I thought I was. It looks like you have done a good job on replacing your brakes but something isn't working like it should. For you own piece of mind and safety, take your truck to a good brake shop and have them take a look. It will probably cost you much less in the long run and be a lot safer. I'm reasonably sure a brake shop would take a look at your work and say, "you did a good job," or, "you have it hooked up wrong." To me, spending $10.00-$20.00 to get it right if necessary would be money very well spent.
Good luck!!