If I install this particular plug on my 2004 silverado, will I need to re-gap it. My truck specs call for .040, and I think the tr55 comes at .060. Is this wrong, or can I get this plug with the correct gap specs for my truck? Can someone share the correct part number with me for the NGK plug. Or would you suggest a different plug? Thanks for the help.

 

Gap it to 3.40 and ride on.
The TR55 is what I run and A LOT of people on here do also. Its a good plug.

 

3.40 or 0.40????

 

.040
Pretty sure that was a typo, if not its wrong.. haha.

 

Not if he uses a 3" plug spacer

 

.040 is more than good.

 

just get a tr5

 

LOL yeah a typo .40 and ride on.

 

Thanks for all the help guys. I gotta wait til my next set of days off to do this.