wozza, I remember a jw told me that they WTS never forbade transplants, but I knew the WTS had a Questions From Readers , that showed all the possible reasons, it would be advisable not to have one. She said that they were not forbidden, although she always told people that her uncle died because he would not accept a kidney transplant even without transfusions being used. She said she did not remember saying that! The last sentence in this answer, says "The congregation judicial committee would not take disciplinary action if someone accepted an organ transplant." Why would the WTS says this if disciplinary action had been taken? In the March 15, 1980 Watchtower, Questions from Readers, p. 31 final paragraph it says this: "Clearly, personal views and conscientious feelings vary on this issue of transplantation. It is well known that the use of human materials for human consumption varies all the way from minor items, such as hormones and corneas, to major organs, such as kidneys and hearts. While the Bible specifically forbids consuming blood, there is no Biblical command pointedly forbidding the taking in of other human tissue. For this reason, each individual faced with making a decision on this matter should carefully and prayerfully weigh matters and then decide conscientiously what he or she could or could not do before God. It is a matter for personal decision. (Gal. 6:5) The congregation judicial committee would not take disciplinary action if someone accepted an organ transplant."
Here is a site that might be helpful regarding the history of the WTS views on transplants. https://www.jwfacts.com/watchtower/quotes/transplants.php