Eibach 2.0 Pro Kit install

[Black02Silverado]

4 hours ago, ocbasbalburg said:

OP, Do you have the part numbers for the Cognito UCAs and Trail Boss half shafts (CV Axle I assume) that you installed? 

 

Did you need to replace the UCAs or just did it to prevent future problems? 

 

I had the Eibach 2.0 Pro Kit installed on my 23 RST about a year and 3 months ago and I am getting a clicking sound that the dealership communicated was from the CV Axles.   

 

 

Hey, I don't have the part number for the UCA's, I just went to Congito's website and put my truck information in.  The Trailboss axle part number is 87862071, same for both sides.  It turns out the axles when I laid them down side by side from the ones I took out, the Trailboss axles were a little shorter.  Which kind of makes sense since when you lift, it looks like it pulls the wheels in slightly, but I could be wrong.

 

No issues with my setup. I installed the Cognito's because of all the chatter online about the factory UCA's going bad with a lift. Even though it isn't much of one, I felt better and since I was in there anyway, it made it easier to do.

 

At least changing out the axles isn't a major job.

Edited July 28, 2025 by Black02Silverado