Re: SER1 Differential woes.....

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Some of the Rover cars also had 3.9:1 ratio diffs.  Off the top of my head I 
can't remember which years/models, but if they didn't have an overdrive they 
had the higher ratio diff.

Ed

----- Original Message ----- 
From: "Diana Alan" <dianaa@xxxxxxxx.xxx.xx>
To: <series1@xxxxxxxxx.xxx>
Sent: Tuesday, November 09, 2004 10:06 PM
Subject: Re: SER1 Differential woes.....


> Hennie
>
> I just have to clarify a couple of points in Allan's post.  Range Rover 
> diff
> centres have a ratio of 3.54:1 and were designed to be pushed along by a 
> low
> revving motor with a lot of torque, a V8.  Only the early Range Rover 
> diffs
> with 10 spline centres are interchangeable with Series 1 Land Rovers, 
> Diffs
> on the later Range Rovers (1990's onwards) have 24 splines and are NOT
> interchangeable with Series 1 Land Rovers.
>
> Rover cars have similar issues the old Rover 75's, 90's, 110's and 3000's
> had 10 spline 4.3:1 Diffs which are very interchangeable with Series 1 
> Land
> Rovers.  The V8 Rover cars like the 3500 also have the 10 spline 3.54:1
> diff, interchangeable but wouldn't get pushed along very well by a 1595cc 
> or
> 1997cc Series 1 motor.
>
> Diana
> Sydney
> Not the one in Nova Scotia
> ----- Original Message ----- 
> From: "Allan Harding" <Allan.Harding@xxx.xxx.xx>
> To: <series1@xxxxxxxxx.xxx>
> Sent: Wednesday, November 10, 2004 8:41 AM
> Subject: Re: SER1 Differential woes.....
>
>
>    G'Day Hennie,
>    Except for very early 80" differentials, the ratios for Series I, II
> and III are the same at 4.7:1 and they are interchangeable.
> Interestingly, Range Rover diff centres are also interchangeable and
> give a higher ratio, as do Rover 90 car diffs.
>    Rear axles were semi floating until the introduction of Series II
> models. From then on they are fully floating. the Series III axles have
> a finer spline at the outer end, hence the driving member is also
> different to early front axle driving members. With the introduction of
> fully floating axles, front and rear hubs are the same.
>    Series II models also feature a 2" wider track, hence axles are 1"
> longer.
>    Front hubs are interchangeable with all models except that the
> thread on the wheel studs changes at some stage (Series III I think).
>    This is all generally speaking, there are differences such as
> Salisbury rear diffs in LWB Series III etc. etc.
>    Cheers
>    Allan
>    Canberra, Australia
>
>
>
> To change subscription see www.landrover.net/series1/mail
>
>
>
>
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> 

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