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Post by philg on Dec 22, 2023 11:28:09 GMT 10
Up for a new rear on my 2023 GU was going to replace with what's on it but it appears I may get more mileage out of a Duro? What's it like off road traction wise as compare to the K37 not that I have done any real mud as yet.
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Post by Uralee on Dec 22, 2023 11:39:49 GMT 10
308’s Surprisingly very good off road and better on road life.
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Post by miker on Jan 9, 2024 10:28:14 GMT 10
Up for a new rear on my 2023 GU was going to replace with what's on it but it appears I may get more mileage out of a Duro? What's it like off road traction wise as compare to the K37 not that I have done any real mud as yet. Phil, remember you have a direct drive 2WD system, so in my opinion you need to have as close as possible traction from both tyres (rear and sidecar) to avoid winding up the final drive. So it may mean you put Duros on both sidecar and rear to keep them the same. |
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Post by Uralee on Jan 9, 2024 11:34:18 GMT 10
Up for a new rear on my 2023 GU was going to replace with what's on it but it appears I may get more mileage out of a Duro? What's it like off road traction wise as compare to the K37 not that I have done any real mud as yet. Phil, remember you have a direct drive 2WD system, so in my opinion you need to have as close as possible traction from both tyres (rear and sidecar) to avoid winding up the final drive. So it may mean you put Duros on both sidecar and rear to keep them the same. Not an issue, as you should only be in 2wd on very loose surfaces. |
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Post by miker on Jan 15, 2024 12:13:44 GMT 10
Phil, remember you have a direct drive 2WD system, so in my opinion you need to have as close as possible traction from both tyres (rear and sidecar) to avoid winding up the final drive. So it may mean you put Duros on both sidecar and rear to keep them the same. Not an issue, as you should only be in 2wd on very loose surfaces. True, it shouldn't be that much of an issue, but the two tyres will have a different traction co-efficient, even in soft broken ground. I once broke a brand new axle in a Land Rover Series III, on soft sand whilst in 4WD low range. Could only put it down to different traction availability between a Road Track Major and a Desert Dueller, after getting a flat tyre. |
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Post by haitch on Jan 15, 2024 13:27:56 GMT 10
Not an issue, as you should only be in 2wd on very loose surfaces. True, it shouldn't be that much of an issue, but the two tyres will have a different traction co-efficient, even in soft broken ground. I once broke a brand new axle in a Land Rover Series III, on soft sand whilst in 4WD low range. Could only put it down to different traction availability between a Road Track Major and a Desert Dueller, after getting a flat tyre. It may matter or not. BUT. It is worth remembering that the Ural final drive is more of a locked differential and not a true differential. (which would allow the sidecar wheel to turn at a different speed to the pusher, when turning) |
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Post by miker on Jan 16, 2024 12:09:05 GMT 10
(which would allow the sidecar wheel to turn at a different speed to the pusher, when turning) Haitch, it's actually just a locked gear. There is no differential at all. So the two wheels always want to turn at the same speed regardless of surface. That means on a hard surface, you will get wind up and possibly break something like a uni joint, or worse. On soft surfaces, with different tyres, each tyre would grip differently, and may cause a similar effect. I dunno really, but it does stand to reason it's possible.  |
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Post by haitch on Jan 16, 2024 14:36:48 GMT 10
Haitch, it's actually just a locked gear. There is no differential at all. So the two wheels always want to turn at the same speed regardless of surface. That means on a hard surface, you will get wind up and possibly break something like a uni joint, or worse. On soft surfaces, with different tyres, each tyre would grip differently, and may cause a similar effect. I dunno really, but it does stand to reason it's possible. Thanks Mike thats what i meant, you just bettered my effort. 😁😁 That and your Landrover analogy just made me think about a fully worn pusher and a new tyre on the SC. Would that cause wind up too? Assuming 2wd engaged and in loose conditions. Possibly?? If in 2wd for a long period and in varying conditions. Gorilla arms needed. |
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Post by Uralee on Jan 16, 2024 15:09:15 GMT 10
Hey guys, they have been running the same fixed 2wd for decades in the Northern hemisphere and no one has complained of ‘wind up’ or breakage. The difference between the 308 and K37 in rolling distance is insignificant on a loose or muddy surface due to the slippage available.
Also, there is absolutely zero need to be in 2wd if you are not on a very slippery surface or crawling over rocks. You can’t steer if it not slippery anyway….😜
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Post by haitch on Jan 17, 2024 17:55:52 GMT 10
Hey guys, they have been running the same fixed 2wd for decades in the Northern hemisphere and no one has complained of ‘wind up’ or breakage. The difference between the 308 and K37 in rolling distance is insignificant on a loose or muddy surface due to the slippage available. Also, there is absolutely zero need to be in 2wd if you are not on a very slippery surface or crawling over rocks. You can’t steer if it not slippery anyway….😜 GOT IT.😄👍😄👍 |
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