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4.1 CWP DiffViews : 650 Replies : 11Users Viewing This Thread : |
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Aug 21st, 2019, 14:15 | #1 |
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4.1 CWP Diff
740 or 940 960 4. anything cwp /diff or complete axle Wanted
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Aug 22nd, 2019, 00:20 | #2 |
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Do you mind me asking what you'll use it for? I've got a 3.91:1 back axle that will be available sometime in the near future but it's not perfect.
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Aug 27th, 2019, 14:04 | #3 |
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Aug 28th, 2019, 07:03 | #4 | |
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Diff
Quote:
Thanks for asking , I will use it on my autograss car. Its a spaceframed front engine rear wheel drive car . Volvo axles are quite common in this class of racing. Geoff |
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Aug 28th, 2019, 08:11 | #5 | |
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Quote:
For example, changing from 195/65/15 to 185/60/15 will drop the tyre diameter by 4.89% cancelling out the difference on the axle. I don't know if there are any restrictions on tyre size for autograss but assuming wheel size isn't restricted (in diameter at least) you could keep the tyre width and aspect ratio but drop the wheel diameter. Using the 195/65/15 as a starting point again, switching to 195/65/14 is a 3.94% drop in diameter. https://www.etyres.co.uk/how-to-change-your-tyre-size/ That's what i used to save my brain cell number crunching at this unholy hour of the day but if that could work for you, drop me a PM and i'll give you more details of my axle.
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Aug 28th, 2019, 16:19 | #6 | |
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I guess that's because the Volvo 700/900 is probably the last volume car to have a live rear axle - apart from vans, pick-ups and off-roaders........? Can you think of anything else Dave....? |
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Aug 28th, 2019, 16:53 | #7 | |
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There's a few others i can think of but they're all a bit older than the 7/9xx as in they were ended on or about the time the 7xx came into being. Things like the Nissan 300C estate (rare as hens teeth when new, now found next to the spare unicorn horns), Opel Manta and one or two more but there is also the Jeep Cherokee from 92-99 but the back axles for those are closely guarded because they tend to be Dana 1040/1 (in other words, the LSD version of what's in most 7/9xx) and i think that's about it. Not sure if you'd class the Cherokee as an off-roader, perfectly capable of it but most were used as Chelsea Tractors.
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Aug 31st, 2019, 07:28 | #8 | |
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Thanks for the info. The reason I would like a 4.1 is to replace my worn out one. ( I didnt set it up correctly ! ) I can see what your saying re the smaller tyre sizes. Ideally I would like to go bigger , not smaller. Will let you know on the 3.9 Thanks |
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Sep 17th, 2019, 15:59 | #9 |
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The most likely place to find a 4.1 diff is the 960 mk2 2.5. Ironically, these are all IRS as opposed to live axle but I'm pretty sure the crown wheel, pinion and most of the other innards are common to both types. Hopefully someone else on here will be able to confirm that.
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Sep 17th, 2019, 16:06 | #10 |
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This is an old thread but it might be worth getting in contact.....
https://www.volvoforums.org.uk/showthread.php?t=286082 |
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