Retro fit 6.1 - parts check list

Mal - In regard to the email - Yes, torque-to-yield bolts must be replaced every time they are loosened up. So long as the replacement bolts are factory parts, there's no risk of the bearing bores changing shape. If they were aftermarket other-than-stock-replacement bolts then you would need to consult with the bolt manufacturer to see what the torque spec needs to be to avoid distorting the bearing bore.