Odd Steering Problem

Well today my brother and I were at work when we stumbled on a 88 cabrio in need of body repair in the paper for $1400, the seller came down to $700 on the phone so my brother sent me to go look at it [gotta love having my brother as a boss]. When I get to the neighborhood, I have to do a u-turn to get to the house, and my wheel would not turn to the left AT ALL, then eventually make a clunk and it worked fine. It did this a few weeks ago once as well, only that time it was going right. Any Ideas on what could cause this? I have to drive this car back to college tomorrow, so I really hope its nothing that can't wait until I get back. When it did it the first time, I thought nothing of it, now I am a little worried since it happened again.
btw, the cabrio was JUNK, they offered to take $500 for it, but I walked, the clipper kit was good as was the top and rims, but the rest was trashed, and I ran the numbers to sell the stuff off of it then sell it to a parts yard, ran the numbers for repairing it and ran the numbers for swapping all the parts onto an 84 cabrio that I saw for $600, but I couldn't make it a cost effective swap for a car I would not have confidence in. I know I am going to regret the desision to pass on this project car soon.


[Modified by golfSPORT95, 10:59 PM 11-24-2001]