80 with a 465 Which U joints?

[sope]

Does a 80 K5 with a 465 have 1310 or 1350 rear U joints?
My 87 shortbox with a 465 came with 1350's. I'm guessing the 80 k5 would be the same but I'm not sure.

Thanks,
JP

 

[Hogback Fabrication]

There are no guarantees, my '77 is a factory 4 speed and had 1310 joints on the rear.

 

[bigblock72]

Most of the K5s have 1310 joints while the K10s w/4speeds came with 1350 joints. After close to three decades it's anyones guess what has been done. The only way to know is measure the cap size. 1310 measure 1.063, 1350 measure 1.188.

 

[sandawgk5]

Not sure about 80 but Readymix's 87 465/208 has 1350. His was a K10 though.

Dik

 

[sope]

Thanks. The reason I asked is I have a 1310 slip yoke I'm gonna give a guy if it will work for him in his k5. Sounds like it likely will.