Possible axle knuckle or yoke question

[hatzie]

I didn't find those when I did my Dana 44 10 years ago.  I asked. 
I used Spicer 5-760X U-joints.  The Precision 371 joints didn't have grease fittings either and the Spicer joints were US made at the time.  I was sorely tempted to drill and tap the caps with carbide tooling.  I had visions of a sintered cap exploding in a shower of small pieces all over my milling machine.

Precision PN 377 is greaseable through one cap.  O'Riley house brand PN 377 is greaseable with a single low profile Zerk too.  Interesting that it has the same part # as the Moog.  The offroad guys don't like the standard and single cap greaseable joints because they have holes drilled through the cross making it slightly weaker.  I doubt that's a real issue on antique mostly road driven trucks.

CTM makes a greaseable through all 4 caps version for $$$$.  The CTM C144-1881 is $235.00.  OWCH!!!!    It has low profile Zerks in each cap with bronze sleeves rather than needle bearings, a solid crosspiece, and it's made in the US.  There's no reason the 5-760X couldn't be made with 4 zerks for a few extra $...  The Spicer joints last a good long time tho.
One piece of information for those folks that use greaseable joints.  Make ABSOLOUTELY sure you are using compatible grease or that you rinse out the factory applied grease before you fill with your own.  I believe most U-Joints come with Synthetic Lithium EP grease.  If you mix some greases it's almost as bad as running completely dry.

[Irish_Alley]

This is a joint from MOOG. It has a grease fitting installed that requires filling with a needle.

maybe i should if read the instructions lol

[berserk]

Just did both ball joints on one side of my 76 k10, I had Orielly's check and the Dana 44 and Corporate 10 bolt have the same part numbers for the ball joints. Quick tip, the upper ball joint on mine did come with a regular zerk and a bolt type fitting. I left the zerk in and once every thing was installed the axle shaft wouldnt turn because the zerk was hitting it. Thankfully I was able to remove the zerk and replace it with the bolt fitting while everything was assembled. I would suggest greasing after the ball joint is installed and replacing the zerk with the other before installing the axle shaft.