You used the 94 compressor and are trying to hook it up to the 92 system in the truck? I can see where that might be a problem. Some A/C shops can make hoses for you, sometimes they can take your old ends and re-crimp them.
Or you need to get more 1994 stuff so it will fit up. 1994 will the r134a, so it will have a larger condensor in front of the radiator and the whole system will be designed for 134a, which will make it work a little better.