I just looked up on the autozone website at the Gatorback for my application.

Here's the link.

On their website it's #4061025. I'm picking one up tomorrow.

 

Funny... that's not the one Autozone sold me...

 

Go to the Goodyear website..it will give you the right size belt..

4061015... I just installed mine today..perfect fit..

 

well crap then- i need to take my #4061025 [per the goodyear packaging] off that i've had on for over 14k problem free miles now!! (don't mind the sarcasm)

the 4061025 has an effective length of 102.5"
the 4061015 has an effective length of 101.5"

looks like the 2004 F150's run the 101.5, the 2005+ runs the 102.5

from: http://www2.goodyearbeltsandhose.com...tCarSearch.jsp
Replacement Products for FORD F SERIES PICKUP - 2004 5.4L V 8 TRITON Eng
Part No. Applications Usage Footnote Metric Part No. Replace By
Poly-V Belts
4060798 Poly-V, w/o AC, Heritage 6PK2025
4060832 Poly-V, w/o AC, Exc Heritage 6PK2115
4060990 Poly-V, w/AC, w/o Supercharger, Heritage 6PK2515
4061015 Poly-V, w/AC, Exc Heritage 6PK2580
4080660 Poly-V, Supercharger Drive 8PK1675
4080990 Poly-V, w/Supercharger 8PK2515
Tensioners
49314 Tensioner, w/AC
49352 Tensioner, w/o AC
Idler/Tens Pulley
49001 Idler Pulley -- Smooth, w/o SC (2 Required)
49006 Tensioner Pulley, w/AC
Replacement Products for FORD F SERIES PICKUP - 2005 5.4L V 8 TRITON Eng
Part No. Applications Usage Footnote Metric Part No. Replace By
Poly-V Belts
4060840 Poly-V, w/o AC 6PK2135
4061025 Poly-V, w/AC 6PK2605
Tensioners
49314 Tensioner, w/AC
49352 Tensioner, w/o AC

 

BalogUK, you must be right, meh, you are right.

I just put mine on in like 5 minutes, the gatorback belt #4061025. Cake. I am hoping I have no more Edge belt squeak.

 

wot belt squeak!? thats what the noise is ive been hearing! i always thought it was my intake squeaking/whistling when i drop the hammer and it shifts. on my way to the store to get a belt. a whole lot of numbers and what not floating around on this post. hope i end up with the right one.

 

The gatorback belt made a world of difference.....and it took no more than 5-10 minutes to replace...easy as cake...and I'm not a seasoned mechanic.

 

Hmm... Now I am wondering. I have an '06 and Troyer sent me the 4061020. When I looked at the Goodyear site, it said 4061025.

Do you guys think it will make a difference? I know it's only a 1/2 inch difference and I think the tensioner should make that up. What do you guys think?

 

I've had my Gatorback on for about 10000 miles still good, and still no WOT "Squeaks"

 

Ugh. I read this thread to determine if the belt troyer sent me is correct. Now I am more confused. Sizes are all over the place here.
Is 4061020 going to work for an 05 5.4 with AC?
Damn. I thought this would be simple.

 

I know, right? From this thread I've seen people recommend these two. So I'm assuming either will work.

4061020
4061025

 

the working lengths of those are 102.0" and 102.5" the 406102 will probably work- maybe a little bit tighter. wouldn't worry bout it.