I know when you guys read this you must have thought your always confused.

BUT im looking to buy the blue spring upgrade and i cant find where to buy it....

also how hard is it to do this?

 

It a Ford part. Your local dealer prob has it. An International dealer also. Or you can order online. There are several FTE sponsors listed at the top of the main page. It's pretty quick and easy. Here is a thread with pictures.
https://www.ford-trucks.com/forums/s....php?t=1123220

 

What's fte

 

Ford Truck Enthuiast. (this website)

 

FAIL!! Sorry I work 12 hours a week

 

Long days for me too. Lol.

 

so just tell them blue spring?
is it cheaper somewhere else?

 

It's a fuel pressure regulator update kit. Check the link I posted above for part numbers. You likely would not need the cover so you could save a few $$ that way.

 

Fuel Pressure Regulator "Spring and Reseal Kit Only"
6E7Z-9C165-B

 

how hard is it to do?

 

rep added to both

 

Fuel Pressure Regulator Update Kit Install (Blue Spring) - Ford Truck Enthusiasts Forums. <----click here to see pictures