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        General >> Give/Need advice to/from others >> Scorpio differential ratios
        
(Message started by: pappa on Mar 31^st, 2008, 12:15pm)

Title: Scorpio differential ratios
Post by pappa on Mar 31^st, 2008, 12:15pm

Greetings The Fellowship of Scorpionists!

:)

My 2.3 DOHC project is rusting in the garage. Currently
I'm in the process of modifying the rear break pipes to
match the abs system ("it's an uppgrade from -95 to 97+")
and at the same go renewing the rear springs.

The diff. I've got in this unholy mixture of Cossie chassis
and 2.3 DOHC lump+A4LDE is from Cossie. I need to
replace it with another one with a smaller ratio in order
to get better torque at lower rpm and hopefully fix the
erratic behaviour of the A4LDE at low rpm. So I do
have a genuine 96+ 2.3 DOHC + manual diff in my hands,
but I also have three others as well. Two are from
-86 and -91 Granada 4x4's and one from a -92 Granada 24V (Scorpio). I'd like to know what's the diff. ratio in those
ones.

Anyway got an idea?

Title: Re: Scorpio differential ratios
Post by Mike_Floutier on Jul 4^th, 2008, 12:50pm

Hi Pappa,

I came across your post whilst thinking through replacing my diff.

The "rear axle spec." page (http://www.fordscorpio.co.uk/manual/rearaxle/RAxleSpecs.pdf) on the site shows a number of different ratios. The "rear axle overhaul" page (http://www.fordscorpio.co.uk/manual/rearaxle/RAxleOverhaul.pdf) shows how to interpret the details on the little metal tag attched to the diff.'s back plate.

What puzzles me is that my existing (very noisy) diff.'s tag shows a ratio of 3.91:1 which is different to all the ratios quoted in the Ford specs. Does anyone have any ideas about this?

Mike

Title: Re: Scorpio differential ratios
Post by scorpio_man on Jul 4^th, 2008, 1:25pm

hi there

3.91 is correct. looks like a typo in the pdf. file as the 4.27 is for the 2.0 16v, iirc

hth

Title: Re: Scorpio differential ratios
Post by Mike_Floutier on Jul 4^th, 2008, 11:40pm

Thanks Scorpioman!