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flex plate bolts wont stay tight ...I have fought this problem for years with a 8 bolt flex plate sfi approved ,3 passes and they are beating up the back of the block ,,,they are red locktighted and tight ,Jim VanZee is now having the same problem ...one guy years ago said buy "the wheel " but I never did Jim said some guys say it isnt the flex plate its the Harmonic ballancer ,,,whose got the real answer ,,,,???







I would say find the common things about both of your set ups.
If you have the same engine guy, that may narrow down the balancing.. Same converter company.?? T/F or Glide..






Chris..