Replace loud fan In 17" Late 2008 Macbook Pro A1261
Left fan was making loud grinding sound, so both fans replaced to avoid future problems with right fan
Instructions were very good with easy step by step procedures.
FOLLOW THE INSTRUCTIONS, make sure the i-sight cable and converter cables are properly connected before closing the case. Use something like a daily prescription box to hold all the screws, each day will contain the screws associated with each step.