Well if you just get the same diameter as the stock one you won't need to get a diff coupler because it only changes the style of the bore from being a conved shaped bore to a straight bore... this will improve your performance...

As far as what size you should get really depends on what you want to do with your truck and how you want it to perform...

 

OK WELL go to www.thefastman.com and tell me which one i should get then...cause i only see one that is for the modle year i have and it says it takes it out to a 71 and thats the one i'm not supposed to get....but there is not one on there that says its a 68.50....so which one should i get...thats what I'm asking!

 

Just go with the 68.5mm unless you plan on getting a set of cams and a super charger in the very near future.

 

okay i understand what your saying...but go to the website... www.thefastman.com which Throttle Body is it? cause there is only one that says 2003-up 4.7L that takes it from a 68 to71mm...the rest of the applications are 2001 only and then 2002-2003....do i need to ask him which one would fit my motor???? thats what i'm asking cause i see the one to where it says 68 to a 68.5 and thats only for a 2001~!

 

I would ask him. He's easy to work with and very knowledgeable on our trucks. He also sells cams and can flash our ecu.

 

sweet man thanks...yeah i called and talked to him! i miss read it...what it says is it means he can do between a 68.50MM to a 71MM Bore on the Throttle body...so yeah i feel like a dumbass...do you know of any HP Gains from his TB's?

 

herkguy.... do you have everything installed and running yet? tell us how it went.

 

Order the one for the 2003 and up and on the order form If I remember there is a place for comments. Just type in your truck information and the size throttle body you want. Thats what the fastman told me to do. I ordered mine about a week and a half ago.

 

thanks man i appreciate that so i did do it right...thats good! hey where did you get your head light covers?? those look pretty good man no joke...but i think i'm gonna get mine tinted so i won't have things sticking up you know! but yeah man the truck looks good!

 

I think I got the headlight covers from dakotatrucktoys.com I can't seem to remember exactly though for some reason. They were only 50 bucks or something like that.