Clicking Noise - Think It's U Joints

[blessed]

Hey guy's (and those girls out there),

91 LS, 200k miles and just noticed a clicking noise when I let off the gas peddle. Anyone have ideas or suggestions?

I'm thinking it's the drive shaft or the u joints or other bearings tied to the drive train. I don't think the LS has CV Joints but not sure. If you have any links to how to replace any of these please let me know.

Thanks!