J'ai trouvé ça sur le net. Sous réserve de l'avis des experts...
Esteban, pour le lien, tu tapes green bearing dans recherche sur le forum et tu trouveras le sujet dont le lien ne fonctionne pas. ;)
Tech Question
Ray Block, Columbus, OH, 1992 Dodge Dakota 318
In installment 2 of Savvy Savoy, you said you do not recommend Green bearings for anything other than drag racing while you do seem to be recommending the "sealed cartridge type used on some 1980's ford pickups".
If these have been around since the '80's and are superior to the Green bearings, I'm wondering if my CRS has been working overtime or if no one has actually mentioned them before? Naturally curious which/why that might be?
The aftermarket axle companies I've looked at all offer the Green bearings but not (obviously anyway) the Ford bearings. Sooo, of course, I went with the Green when I swapped an 8 3/4 into my Dakota 6 years ago.
So far so good after 13,000 miles and 1,200 drag strip passes but you make me wonder if (why) I should switch to the Ford bearings anytime soon?
As always...you da man! Enlighten me please.
Thanks, Ray
Ray, the Greens are low-capacity ball bearings...maybe 1/10 the side-load capacity of the stock Timkens. They are fine for drag racing, pretty lousy on the street, and pretty scary if you're into cornering or towing! (Admittedly, I've never personally seen one catastrophically fail, but I've seen plenty get noisy and sloppy).
The Fords are sealed rollers, way better than balls. The reason why you don't see more of 'em is 'cause they require you to weld on custom axle housing "ends". I have featured these earlier in the mag, as a way to dump the C-clips on 8.25 and 9.25" axles.
I also must add that, except that they require more care during assembly (packing with lube, endplay adjustment, etc.) the stock Timken tapered roller setup is about as good as it gets.
Rick
C'est là.
http://www.moparaction.com/tech/quest1/ ... RINGS.html