Ujoint measuring for 9"

[Jonk67]

Ok I'm ready to order an alum. DS from Shaun at SorT, looks like 51.5" length but I need to specify ujoint sizes/#'s. My 3rd member was built for me by a guy in IN and I picked it up a couple years ago so i can't remember his contact or if he specified a size.
1330 = 1.125" or 1-1/8"
1310 = 1.06" or 1-1/16"

Are the 9" yokes a standard size?
Can I measure across the open width and be accurate?

I bought Currie CE 4059 -1330 straps from summit last year and want to make sure they are correct for the ujoint also.:
Universal Joint Style -1330
Bearing Cap Outside Diameter (in) - 1.125 in.
http://www.summitracing.com/parts/CUR-CE-4059

I've got the Ford Racing yoke for the AOD and it states 1330 (1.125") size for it but my calipers measured 1.06"? I'll double check and find the part # tab off the box I kept:
http://www.summitracing.com/parts/FMS-M-4841-B/

Thanks, Jon

 

[Anonymous]

http://www.dennysdriveshaft.com/how_to_measure.html

 

[Jonk67]

Thanks Mark, that was fast. I'll be book'marking' that site!
Jon

 

[cmayna]

Thanks Mark, that was fast.
Jon

Just like his sex life we've been told.

But all serious set aside for a moment, that driveline website is very useful. Yes, something to bookmark.

 

[Anonymous]

Just like his sex life we've been told.

Dammit, your wife said she'd keep it a secret.