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Can anyone expand on why it is so bad to hae axle grease in the wheel bearings? It's good enough for the carrier bearings and pinion bearings. Carrier bearings are bigger so they spin faster and the pinion is spinning 3 to 4 times the rpm that the wheel bearings are so what am I missing. |
At a guess, impact loads from hitting bumps, cornering loads that are trying to bend the axle shafts, and the car's static weight loading.
Norm |
The more I thought about it Donny, the more I think it really isn't a lubrication issue. Once the oil runs down the tube and into the hub its trapped, can't get back up in the tube and back to the center. Nothing lubes like an oil bath, all 3/4 and one ton trucks lube that way, so do tractor trailers. They have way more load then anything we do. Hell the snout that I'm running on this Mustang and the AMX is the exact same snout used on the rear of a late 60's early 70's 3/4 ton dodge truck.
I think the reason they don't want gear oil out at the wheel is more of a seal failure issue, slinging gear oil all over everything, brakes, tires, the track. Could be a bit hairy if you didn't know it was happening. Just my thought. |
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There is not enough inside diameter on the IMSA snout to fit a seal out at the wheel. The 2.5" Grand national snout does also have a outside seal. I just didn't like how close the wheel bearings are together on the GN style. The extra seal is a definitely an advantage though. Wouldn't stop the center leak but should keep the oil out of the wheel bearings. Hoping this new style seal fixes the problem. Had the car out yesterday, did a Pro Mod burnout across the Conowingo Dam, car is so fun to drive. |
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I would agree with that line of thinking.... that it's more of a seal issue... and that the bearing GREASE doesn't liquify at high temps the way the gear lube does.... so keeping it "in check" isn't as much of an issue. All the hubs on my semi truck and trailer are oil bath.... and I run down the road at 58,000 lbs laden. Quote:
I could see that the diagram made it APPEAR that the seal was nearer the carrier.... and that was why I asked -- because it didn't appear to be installed from the hub end... and I thought --- MAN! Ya gotta drop the pumpkin to install that and maybe it just looks that way in the drawing. |
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A friend of mine on the Monte board saw these displayed at Carlisle this weekend and sent me the link because he was aware of the troubles I've had sealing my 9" up. I'm trying to figure out how deep\close to the diff you put the cheaper versions on the axle. Looks like a good idea though for sure. |
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So this seal that goes on the diff end of the axle, is that the high dollar version or the $29.99 version of their seal? |
These are the expensive ones, I think they were like $70 a piece.
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How did/are you venting the differential?
Dan |
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