Who made the suspension lifts with the blue springs? I am semi-parting a truck and it has the blue springs and pro-comp shocks... I seem to recall having heard some not-very-good things about the blue springs and the shocks. BUT, in all fairness, I have (TerraFirma) springs with pro-comp shocks on my truck and have had no complaints.

Are they worth the time/trouble to pull and replace with stock hardware?

 

possibly Britpart

 

Britpart has yellow springs, not sure if they changed them at some point.

 

They are called big blue. Dap used to sell them.

 

the man is correct

 

I seem to remember having read that they weren't very good. However, they do seem to be holding the truck up fairly well, sits about the same as mine does on the TerraFirma HD springs...