2000 Pontiac Bonneville SSEI tensioner

[Godking Faith]

Feel free to move post to correct thread or guide me to correct thread and I'll delete this post.

My water pump has gone bad. Got the new part gasket and sealant. Bought a T50 torx bit from autozone. It didn't fit bought a T60 didn't fit. What MM nut do I need to buy that will fit?

If anyone is in the Aurora Colorado area and knows how to replace the water pump I'd be willing to pay depending on how much. Any and all education welcomed.

[96 SSEi]

water pump itself is fairly easy - remove the 4 bolts from the w/p pulley while the belt is on or it will spin.

I think I used a t 55 for mine: you are asking about the tensioner for accessory belt - why are you asking about a nut?