ant cozzie

my diff has gone on my escort cosworth and ive got an old D reg seirra 4x4, are they the same diff?

Dave Henshall

different slip settings - but would phisically fit

tabetha

Some are 7" some are 7 1/2" but can't remember which way round!!
But each can be fitted to each other reasy enough.
tabetha

cozmeister

iTrader: (1)

http://forum.fordsierraclub.co.uk/vi...276&hilit=diff

http://martyn.sillyproject.com/backup/diffs/diffs.htm

These may help.

rog

iTrader: (2)

What about the ratios though, they are diddferent are they not????
What would this do???

Kelv

iTrader: (4)

i was going to say it would be ideal to check that the sierra diff isnt 3.9 instead of the escos 3.62.

ant cozzie

how can i find out wot ratio it is?

RWD_cossie_wil

iTrader: (9)

Mark the input shaft, mark the output shafts. Turn the input 3.9 times, and the outputs shafts should only rotate once, should be able to see the differance between 3.6 turns of the input and 3.9. The messy way is to take the rear cover off and count the teeth on the crownwheel and count the teeth on the pinion, divide the crownwheel number by the pinion number and that should give you your ratio

seventhheaven

Hi,
A friendly man at the local ford dealer let me use his microfiche machine and I've managed to get all the part numbers, FINIS numbers, exploded diagrams etc for Sierra, Granada and Scorpios. I'm putting together everything I've found at www.super7thheaven.co.uk
Hope that helps - It's a work in progress

grcossie

Sierra 4x4 and Escort have the same diff, whit the same ratio. Only 2wd have 7,5" and 3.64
3.9 is not oe in any Cosworth