I replaced the original Dayco belt on the wife's '08 Sequoia (5.7L) with another Dayco (from PepBoys). The old belt worked fine, but it had numerous cracks on the inside 'rails'.
The new belt screamed like a girl at a boy band concert, for almost a minute when the engine was started cold. Then the belt quit howling until the next engine start. I tried soap, WD-40, angry glares; nothing worked.
I gave up and ordered a Gatorback from Amazon. I was a bit reluctant, but they are not available locally, and unfortunately the Goodyear belt is 'Hecho en Mexico.' But, I'd had great luck with the Gatorback v-belts in the past.
Took the Dayco off, put the Gatorback on, and it doesn't make a peep. And, the Gatorback was cheaper.
If you go to Amazon, you'll find the site recommends the 4080948. However, I found that some guy recommended the 4080945, which is the one I bought. After I went to the Goodyear site, and the '948 is not listed. The '945 actually installed easier than the Dayco screamer.