I have a question about the body lines on these old trucks. I have an 89 d100 and the doors are pretty gone. I found the lower 18 inches or so of the door skin for the earlier models on line. So the question is, are there any differences between the two that the door skin would not work on my truck? The parts are $12.50 each so they are not expensive but i dont want to waste the 25+shipping if they wont work. Any one have any info i would greatly appreciate it. Thanks in advance.