Cost to replace Timing Chain through dealer

Howdy everyone,
My suburban has about 260,000 miles on it and everything is mostly original give or take a few things, so I think it's time to replace the
Timing Chain. Has anyone taken their truck in to a Chevy or GMC dealer to have this done? I don't wanna do it myself, but I haven't had time to call the dealer to ask yet. I just wanted to know what is the range I should be expecting to pay with parts and labor fees.

thanks

What year and engine?
Does it really need replaced?
I would check it for slack before I tried to replace it.
Your dealer or repair shop will give you a estimate of the cost.
MT