Can I get some help/opinions
 

Ok we I haven't posted in a long time and thats because i've been working my bum off on my truck and well i've fixed a bunch of stuff and certain things stil don't work i'll list and describe them.

1. I had to replace all the brakes including the hardware in the drums in the back and a line in the back now theres no air in the back brakes but theres a little in the front ones, thats not really the issue, the issue is that when the trucks off theres a little bit of resistance when i press the brake pedal but when i turn it on theres none it goes straight to the floor and the only way to stop is to slam it to the floor and watch your truck skid down the road so could it be the master cylinder or could it be the booster or what?

2.After i got the truck i promptly realized that the 4x4 didn't work(which blows) so i picked up a new engagement motor for it and figured that would fix it i got that all installed and i take it out and i still dont have 4x4 just the back tires spin, when i push the button i hear it turn and click behind the drivers seat but it doesn't engage but i dont know if were its the fact that i have automatic hubs that may not be locking but i dont know how to test/check if they are locking any help on that would be awesome.

3.The guy that had the the truck before me had for some reason had pulled off the the driver side door panel had had ripped the two wires that power the driverside window switch is there anyway to fix the wires with out replacing the whole wiring to it in insight would be welcome.

As far as the 4X4 part, I don't know anything about that and hopefully someone else will chime in. It does sound like your master cylinder is going bad. You can fix/repair the wiring for you power features in the door. Take off your door panel and even though there will not be alot of room it can be done, there may be a thread about it here somewhere, just search power windows.