2007 U-joints does it have 4 or 5 total?

I ordered 4 u-joints to get them replaced and they said it had 3 in back and 1 in front. Once I got home I notice 1 of the 4 u-joints I ordered was sitting in the cab of the truck. I called the mechanic and he said he didn't install it because I needed 1 more for the front. I called the dealership and they stated AGAIN it should only have 3 back and 1 in front but said there computer may be wrong Soooooo milllion dollar question Does a 2007 Toyota Tundra Crewmax 4wd have 2 u-joints for the front or only 1?

 

I think it’s 5

 

Definitely 2 up front; one at each end of the shaft. The rear two-piece driveshaft shaft has 3 because of one joint between the two shafts