changed transfer case now problems with drive shaft?

I have a 1988 ford f 150 1/2 ton truck with a 302 motor and 5 speed manual transmission. My 1356 borg warner transfer case locked up in it. I got another one but it is a borg warner 1345 wich does not have the shaft coming out of the back of it. so I got the driveshaft that came with the 1345, because I knew mine would be to short. My problem is that the driveshaft is still too short. everything in the 89 that I took it out of is the same the only difference is that that truck is 3/4 ton and mine is 1/2 so I take it that the nose on the axle is longer on the 89. Called junk yards but have had no luck. need to know what year to ask for to match up to my truck. Gave them the lenght that I need but they say they cant look it up like that and wont go and measure any of them. Also wont let me go into the yard and look. Called a driveshft shop and it will be 300 to 400 for them to add to mine and make it work. dont have that much to spend on it. Can anyone help me?



