Uni Joints, Grease able, or sealed units ?

They must not be too bad as you are flat out finding a grease nipple on most cars these days

gday,

i have maintained trucks with greaseable and non greaseable uni joints and have seen both types reach a million kms, the greaseable ones being greased every 10,000 kms. never seemed to have any probs with contamination either

None of my drive shafts are grease able have got 150,000 on em now.
The tie rods get around 100,000k before they need replacing, once agene non-grease able.
My ball Joint’s did 135,000 before they were buggered, but the boots on all of them had been torn open for a wile. They were replaced with Grease able units and I put a set of aftermarket control arms in at the same time.

Cheers

Axle.
Greaseable uni's are not as strong as the non greaseable because they have to be made from a steel that can be drilled cheaply, some cheap units are cast iron, one of the early lessons I had when preparing vehicles for expeditions is to only use forged steel uni's. Eric.

Still got the original toyota's in my'n done 290k now grease every 5k and still fine. Regards Steve M

Axle,
One of the main benefits of greasable uni's is if you do a lot of mud & water work a regular pump of grease pushes the grit & water out of them. Non greasable do get grit & water in them after a while. We had Earthmover equipment for a lot of years & it was amazing the rubbish that would come out of joints with a small pump of grease.
Good Luck