Re: Tell me I can't do this
so Oily was, like...
> "EMB" <email@example.com> wrote in message
>> Richard Brookman wrote:
>>> Is it a straight swap, and would I need anything other than new
> If your 90 axles are late ones make sure at least one of the cast diff
> housings has an oil filler/level plug hole on the side and put that
> one in the rear axle or you may have trouble getting oil in it after
> fitting. It's easier to weld a fitting in the rear diff pan whilst
> there is no diff fitted for obvious reasons. Range Rover Classics are
> fine spline diffs with no side oil fillers but early (two door types)
> usually have them and are 10 spline.
>> 3.54 ratio Range Rover Classic diff heads are a straight swap -
>> they've got 10 spline axles (as you IIa should have if nothing's
>> been changed). And aside from new gaskets they are indeed all you
>> will need. The only downside is that they raise the drive ratio
>> across the board - so low range is not as low as it previously was.
>> A happier medium is to use Rover 90 diff heads (also a bolt in fit)
>> that are 4.1 ratio. I've run with both in my IIa and I feel that
>> the 4.1s give a more usable package overall (so they are what's in
>> there at the moment).
> It doesn't seem like you are going to spend money playing with
> different ratios but if you * do * then the older Rover cars were, I
> think, 4.3 :1 and
> 3.9 :1, but not 4.1 as ISTR. I don't think you would find a pair of
> these anyway today.
> HTH Martin
Thanks EMB and Martin. As long as the 90 axles contain 10-spline diffs
(easy to check) I can do the swap and see how it goes. In fact, all I have
to do is swap the rears and remember to stay in 2WD. If the 90 diffs prove
too much for 2.25 litres of naked power, I can always swap back and look for
something in the middle.
Thanks for the help.
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)