Universal Joint - proper fitting

[rogerotto66s]

This is for a 66S

I purchased a hardy spicer universal joint with a grease fitting.

Is there a proper fitting?
Does the grease fitting go toward the driveshaft/hub or the differential housing.

The picture depicts how I now have it - toward the driveshaft/hub.

[iain1967s]

The grease nipple is not standard fitment on the mini HS joints. I think it’s mostly used when the same size cruciform is used for the TR7 etc driveshafts, as those pivot a lot more extensively than the relatively small angular movements required on the mini inner end of the driveshaft.

[roymck]

There are thoughts that for maximum strength a UJ with a grease nipple should be fitted so that the rotation of the driveshaft squeezes the grease nipple hole shut , if fitted incorrectly it has a weak point and the torsional forces could cause the UJ to crack along the grease nipple hole .
So the photo above would show that ideally a joint that should be on the drivers side .
Or ideally a sealed for life joint with no nipple is even stronger .

[iain1967s]

I used these Minispares parts for my recent HS/diff rebuild:
GUJ101EVO - UNIVERSAL JOINT HARDY SPICER HEAVY DUTY

[dklawson]

Roymck made an interesting point concerning the orientation of the joint which I will try to remember for the future.

I have used u-joints with Zerk fittings on several non-Mini cars. In most instances I remove the Zerk fitting and plug the hole with a 1/4-28 set (grub) screw. I Remove the set screw, thread in an extended length Zerk and pump away with a grease gun when I want to lube the joint.

The picture below is of such an extended Zerk.

[rogerotto66s]

I located this forum which discusses installing a Universal Joint with a zerk.

https://www.turbodieselregister.com/thr ... on.100801/

[Spider]

I don't recall fitting the types with a grease nipple, but I have a recollection of a discussion on the forum (?) that in a Mini, after Greasing you need to remove the nipple and plug the hole, otherwise they foul on the yokes and break off.

[rogerotto66s]

The positioning of the zerk is what led me to post this topic.

So... I will either replace with a set screw as was suggested or purchase 2 non-greasable units from MiniSport. The price is too good to pass up - GUJ101 $9.64. Does anyone have any experience with these?