325i Diff ratio?

[eko]

Can someone tell me the diff ratio for a non LSD 325i diff?
It is from a chrome bumper model with switchable sports auto!

[johnono]

have a go on this fella ;)

http://www.behindmatrix.com/e30/fotost/ ... f00023.htm

[eko]

Thanks mate!

So going by the chart it should be a 3.73 or a 3.91 right?

But will it differ due to having sport auto box or not?

Basically the diff on my iS is starting to whine,and i have both a 320i auto and 325i auto as breakers,and was trying to work out which would be the wisest swap.
Cant afford an LSD yet

[johnono]

the diff would probably be lower gear as it has a tourque converter, but i wouldnt want to say it to be gospel. better odds on u using the 25 diff anyway, as it may be a slippy

but, a 18i.s might not have it to push a crome bumper diff, as they were generally lower diffԚ´d also

according to the site a chromey pre 86 may have a 3.46! and an after 86 a 3.64
plastic bumpers may have a 3.73 or a 3.91 depending on sport box and/or slippage

not sure on this but it sounds about right, if the 2.5 isnt a slipper then go with the 2.0 unless the 2.5 is a large case . then iԚ´d have that.. but u could sell it (large case good money) and live with the 2.0 diff till things change

options options mate

[eko]

yeah thanks mate,think ill jack it up tomorrow and try and read the tags.

Definately not a slipper,ive already checked,but is the large case easy to spot for a novice?
Any tell tale signs?

[johnono]

;)

[eko]

thanks that should be a good help!

Why is there a demand for large case then?

Generally stronger?

[johnono]

yeah, and better cooling i think. but mostly because they can handle bigger power and increased tourque

[eko]

Ok,ill check tomorrow and see if its large case and diff ratio!

Thanks for your help mate,if its large case and sells your on for a drink ok

[johnono]

all good bruvs , my plesure