Need to check: Correct U-Joint?

[KDMatt]

Now I know already how a lot of people feel about stuff from CSK/Kragen/Checker (I personally don't mind them), but I'd just like to double check.

Is this the right type of U-joint for the propeller shaft?

http://www.partsamerica.com/ProductDetail.aspx?MfrCode=GMB&MfrPartNumber=2200027&PartType=17&PTSet=A

It says it's for a 3 pc. driveshaft... which could maybe indicate that it's a fit for the half-shafts coming out of the diff... but there's also a separate part listing from this manufacturer for the half-shaft U-joints.

I may also add/drain fluid from the tranny and diff. at this time too (might as well, since I'll be under the car), 75w for the differential and 90w for the transmission sound okay?