So, the clicking from underneath my Blazer has gotten much worse over the last month. It is difficult to know what side this is coming out of because it is so loud. Here are the specifics of what I can tell you:

99 Blazer 2 Door, 2 wheel drive 147xxx miles.
Only clicks when turning left at low speeds or backing up.

Here is a video I took of the noise when pulling into a parking spot:
badujoints.mp4 - YouTube

Is this bad U-Joints?

 

I haven't listened to your video. But usually when someone says clicking noise rather than a clunking noise, I would say CV joints. U joints clunk.

 

+1 on the cv joints

 

He listed it as two wheel....shouldnt be a cv joint.
Check you wheel bearings..lately?

 

it is a 2 wheel drive, and no, bought the vehicle about a year ago and haven't replaced wheel bearings.

 

if it was a u joint i would think it would be more consistent with a hard acceleration rather then turning.
i would def take the wheels off the front and check the bearings.

 

Oops, didn't see that detail lol then +1 on the hubs lol

 

Alright, I'll definitely jack it up and take a look this weekend. Is the best way to test the bearings is to see if there is slack on either of the front wheels when tugging on it from side to side?

 

Yup, if the hubs are bad there will be a lot of east, west play. To check the ball joints look for north, south play.

 

Kinda hard to tell with the audio, but it almost sounds like the hub. Odd that it would do it only turning left. Buy Moog Front Wheel Hub Assembly 513200 at Advance Auto Parts