Tie Rod help needed dana 44-5f

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I have a 76 k5 blazer with a older front end. It now has a front end vibration due to tie rods. Chevrolet had 4 different Tie rod sets from 69 to 88. By the looks of the front end its a earlier 67-72 style. The new tie rods dont want to seat themselves and are causing themselves to wallow around. I have just found a company that sells bushings for tie rod ends http://completeoffroad.com/i-123283-...ana-44-60.html Has anyone had this problem and tried them and I would like to know the year front end so far it reads 6 12 a4