I have a 79 K5 and it was lowered by the previous owner ('s) spindle and coils in the front and shackles + removal of the #3 leaf (arch leaf) in the rear. All that being said im thinking of installing headers and probably 3/4 length for clearance. What are the type of headers everyone are running? And what should i stay away from?

 

If you don't have budget for a Doug Thorley, Flowtech is a good alternative.

 

I have a '77 GMC VanDura 4x4 350/700R4 Dana 44 from a '75 blazer. I used Hedman ball and socket headers for a van that I had to modify one tube on the Left side for spring clearance on my custom installation.