Hey,Stu,
John gives some good advise. I suggest that you do away with the I&amp;amp;T, they are not that good. Contact the Floyd County Museum in Charles City, IA, they have reproduced manuals from the factory file copies, and these are good. Also, you should throw away that bolt on your top link, and use a pin instead. The threads tend to increase wear on that part, and parts are expensive.