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Author: Subject: Which Sierra Driveshafts?
DavidW

posted on 16/10/18 at 08:42 PM Reply With Quote
Which Sierra Driveshafts?

I currently have open 7" diff with push in shafts and drums converted to discs with bolt on brackets installed in my MK Indy.

I've just bought a Sierra 7" LSD that I'd like to fit. The new diff has bolt on flanges so I know I need new driveshafts.

Looking on eBay it seems there are different length driveshafts. Does anyone know how I work out what I need?

Does anyone have any?

Thanks

David

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scimjim

posted on 17/10/18 at 08:04 PM Reply With Quote
On the Scimitar (7 push in with drums) you can just remove the inner CVs and stub shafts and fit bolted type CVs?









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DavidW

posted on 18/10/18 at 06:19 AM Reply With Quote
Thanks, I have been reading a bit about making hybrid driveshafts can can't quite work out if the removal of one sliding inner joint is a problem.

The car is likely to see a fair bit of track use.

Does anyone have long term experience of how well they last?

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mcerd1

posted on 18/10/18 at 10:27 AM Reply With Quote
can't tell you how long they'll last - but most people that use them don't seem to have too many issues (unlike a tin-top its not like most people drive 10k+ a year in a seven)


the alternative will need you to get the bolt-on hubs, stub axles and flanges
(and I don't know if your drums will fit these either as all the sierra's with bolt-on shafts used rear discs too)
rear axle bits
rear axle bits






- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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scimjim

posted on 18/10/18 at 10:38 AM Reply With Quote
Mine's been fitted for 5 years without problems. Only 6000 miles - but that does include a couple of test days at Curborough. I had the same setup on the sprint car until I picked up a Quaife.
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DavidW

posted on 18/10/18 at 11:11 AM Reply With Quote
quote:
Originally posted by scimjim
Mine's been fitted for 5 years without problems. Only 6000 miles - but that does include a couple of test days at Curborough. I had the same setup on the sprint car until I picked up a Quaife.


Thanks. How did the Viscous and Quaife units compare?

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jps

posted on 18/10/18 at 11:25 AM Reply With Quote
quote:
Originally posted by mcerd1
rear axle bits
rear axle bits



I was quite proud of how i'd cleaned up and painted my driveshafts, hubs and hub carrriers.... Until I saw that photo!

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scimjim

posted on 18/10/18 at 11:29 AM Reply With Quote
quote:
Originally posted by DavidW
quote:
Originally posted by scimjim
Mine's been fitted for 5 years without problems. Only 6000 miles - but that does include a couple of test days at Curborough. I had the same setup on the sprint car until I picked up a Quaife.


Thanks. How did the Viscous and Quaife units compare?

The Quaife seems to launch a lot better and is smoother in corners. Have you noticed that the prices have recently dropped dramatically, with the launch of several competitors?

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DavidW

posted on 18/10/18 at 12:13 PM Reply With Quote
Prices have dropped so about 800 by the time it's fitted into my final drive unit.

If I put in a Sierra unit and can make up some driveshafts as described above I think it could be about 350?

Not sure if its worth the extra?

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scimjim

posted on 18/10/18 at 12:26 PM Reply With Quote
New Quaife or s/h Ford - never going to win on finances alone
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DavidW

posted on 18/10/18 at 04:53 PM Reply With Quote
quote:
Originally posted by scimjim
New Quaife or s/h Ford - never going to win on finances alone


Haha

Probably should have said Quaife vs Sierra plus a set of wets....

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