James_Douglas Posted April 25, 2007 Report Posted April 25, 2007 Hi, After some digging, I found out that the Master parts Book for my Desoto as well as the Desoto Factory Service manual have a misprint. The Master parts book lists a 5/8-18TPIx.75 inch long bolt. The Service manual lists the torque spec as 30-35 pounds. I just took the torque spec at face value and did not realize that the ACTUAL bolts used to clamp the Pressure plate to the mini-flywheel on the fluid coupling is a 5/16-18TPI bolt. So, at 30 to 35 pounds for a 5/8 bolt vs 18-23 pounds for a 5/16 bolt it is no wonder that the bolt snapped. I don't know if the Dodge or Chrysler books are also wrong, so you folks with fluid drive be advised. I am going to a hardware store and get 5 new grade 8 bolts and replace them all and torque them with dry at 21 pounds. Best, James Quote
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