The water pump bolts are different lengths,long and puny, and shear very easily. If you are removing the original, or a very old pump, be prepared for disappointment here. Be sure to use NEW bolts with the new pump, and "never seize" or a like product. DO NOT use Loctite! There is a nasty bolt hidden on the lower part of the drivers side of the pump.Treat it with kid gloves as it is prone to shear. The engineer that designed these bolts should have to remove and replace one water pump a week for the rest of his/her life! Good luck!