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Author: Subject: Which Sierras have 3.14 diffs?
Mark Allanson

posted on 9/2/05 at 10:13 PM Reply With Quote
I thought the 2.3 Diesel died a death a long time before 1993. I took one out of a 1984 model and put it in a fishing boat years ago. It was a real monster, weighed 1200kgs and about 6' long and leaked more oil than the Torrey Canyon!!





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JoelP

posted on 9/2/05 at 10:44 PM Reply With Quote
oops, my bad.... its a 90G. but still, ive never heard anyone say a diesel had a 3.6, unless the bloke is mistaken and its a 1.8td... but that would be a big mistake!






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Steve&Steve

posted on 10/2/05 at 03:40 AM Reply With Quote
I just checked the diff from my 2.0 LX Dohc donor sierra

The vin plate says 'U'

The tag code on the diff '83BG MC 362' says its a 3:62:1

Joel this would suggest Dern on this thread Here would be correct and the diesel your refering to with a 'V' code is a 3:38:1

Correct Ratio Code List:

3.14 M
3.36 A
3.38 V
3.62 U
3.64 3
3.92 D






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JoelP

posted on 10/2/05 at 10:00 PM Reply With Quote
could be... certainly worth finding out for sure. ive just bought a 2 litre auto with U in the code box. i really need to find out sharpish! out with the spanners i guess!






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JoelP

posted on 11/2/05 at 08:55 PM Reply With Quote
just to confirm, my new donor has a U in the diff box and 3.62 on the diff tab.






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jambojeef

posted on 11/2/05 at 09:21 PM Reply With Quote
Hmm,

If my experience is anything to go by - I dont think theres any guarantee you're getting a particular ratio when you buy a sierra. They seem to change so often across body style and engine variants that your only certain to get the right diff by leaning under it and looking at the tag.

To add to the confusion - I literally ran to buy a 1986 2.3 diesel estate the week before last convinced Id got a 3.14 and it was running a 3.38.

I guess that makes sense considering what might be in the back but I wasnt expecting it from what Id read on the subject - also dont be fooled by the 1.8 turbo diesels - one of those I looked at the other week was a good old 3.62.

Keep looking for a 2.3 diesel they do exist - there was one on ebay near cheshire the other week on a K plate - anyone get that?

If that doesnt work - this appeared on the BEC section a few days ago by adamhay - http://www.locostbuilders.co.uk/viewthread.php?tid=22221

hope that helps!

Geoff

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JoelP

posted on 11/2/05 at 09:50 PM Reply With Quote
allegedly, the 2.3d estate has 3.38 as a norm, others (sal/hatch) are more likely to be 3.14. A tow pack makes it more likely again.

im collecting a 2.3 diseasel tomorrow. plus i got my eye on a few more.

according to my research, 2.3v6 petrols can have 3.14, and also the 1.6 4 speed economy (whatever that is - old manual?).

i guess time will tell! ive been through nearly every car on ebay asking the seller to look at the diff code!






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jambojeef

posted on 11/2/05 at 11:46 PM Reply With Quote
Where are you gettng all these from Joel! Have you a secret stash of Sierra diesels? Not a bad game to be in by all accounts!
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Peteff

posted on 12/2/05 at 12:10 AM Reply With Quote
That's what my mate wanted the stamps for eh? He's making his own diff tags I reckon.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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jambojeef

posted on 12/2/05 at 12:29 AM Reply With Quote
yeah totally! "These are all 3.14's these mate (sharp draw on cigarette), use to belong to vicars wife but she only used the diffs for going to the shops" - We're onto you Joel!
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JoelP

posted on 12/2/05 at 08:17 AM Reply With Quote
rotf!

now the proud owner of two diesels!!!

both 3.38 i believe, though the one im off for now i havent checked. 3.38 seems to be the commonest in diesels, but ya never know!






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JoelP

posted on 14/2/05 at 10:22 PM Reply With Quote
quote:
Originally posted by Mark Allanson
I thought the 2.3 Diesel died a death a long time before 1993.


good point there mark. i think you're right, they all seem to be 1.8td in newer cars. however, i have a 93 2.3d in the drive, which is puzzling me - esp as it has a crap diff. Perhaps it didnt start as a diesel?

and, ive just noticed it has a tachometer that goes up to 7k revs!! not diesel me thinks...

[Edited on 15/2/05 by JoelP]






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colibriman

posted on 24/2/05 at 03:08 PM Reply With Quote
Did i read this right that there is a letter on the VIN plate of a sierra which says which diff it is?
if so, where exactly on the VIN plate is it?

cheers
Colin





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JoelP

posted on 24/2/05 at 09:56 PM Reply With Quote
in the box that says 'axle pt ar'

on the plate between the headlights.

and whatever anyone says about the variances in which car gets what diff, ive never seen a plate be wrong (out of maybe 5 cars, which isnt much, but its pretty conclusive!).






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colibriman

posted on 24/2/05 at 10:10 PM Reply With Quote
Ok, thanks Joel...





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JoelP

posted on 25/2/05 at 08:32 AM Reply With Quote
in case you missed it, the codes for U and V were posted the wrong way round recently. A and V are both approx 3.38, M is 3.14 and U is 3.62. D is 3.92.






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colibriman

posted on 25/2/05 at 08:52 AM Reply With Quote
Oh.....Ok.....yep I did........

Your really on the ball....! or the CWP,.....





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Hellfire

posted on 25/2/05 at 12:45 PM Reply With Quote
Just to add to this... I don't think the 3.14 Code M Sierra diff really exists. I reckon someones made it up, cos every 2.3 Diesel I've checked (and believe me I've checked a few!) have all had 3.38's






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colibriman

posted on 25/2/05 at 12:47 PM Reply With Quote
wot.....!

oh I'm confused now...

What do the 3.14 come disguised as then..?

The one I have just checked had code V





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JoelP

posted on 25/2/05 at 02:03 PM Reply With Quote
i found one!!!!

it was listed on ebay about 2 weeks ago, a 2.3v6 petrol auto*

*i think, that is. There were two listed at the same time, both crystal green metallic. Someone emailed both of them telling them that there were only 4 sierras this colour left, hence he pulled the auction cos he thought it was too rare to sell.

anyway, i think that it was the v6 auto one that was the M code.

he sent me an email, asking if i was looking for an investment or a runaround. i thought it was a bit much to tell him i was going to butcher and scrap it, so i didnt bother answering!!

ps, have you noticed how many people have been asking about diff codes on ebay recently? i even got asked about the code on the car im selling at the min! reminds me of the 'whos considerably' shmia of old...

pps, as hellfire says, nearly all 2.3 diesels are 3.38 diff. still havent found out if the 1.6 autos have them...

[Edited on 25/2/05 by JoelP]






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NS Dev

posted on 4/4/05 at 09:24 AM Reply With Quote
quote:
Originally posted by ned
have you thought of trying someone like kam who make bespoke cwp dif kits?

just found this on their website, looks very promising!

http://www.kamdiffs.com/sierra_3_1.htm

Ned


Resuurecting a thread here, but you are ok surely Ned, the 3.62, std XR4x4 ratio suits most car engines perfectly! it's only the bike-boys with a worry!

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ned

posted on 4/4/05 at 09:33 AM Reply With Quote
NS Dev,

I've never planned to use a 3.14, was just trying to help others. I have an open 3.92 at the moment but that may change to an lsd at some point along with a different ratio.

Ned.





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Hellfire

posted on 4/4/05 at 11:33 AM Reply With Quote
We're still looking for a 3.14






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NS Dev

posted on 4/4/05 at 11:42 AM Reply With Quote
quote:
Originally posted by ned
NS Dev,

I've never planned to use a 3.14, was just trying to help others. I have an open 3.92 at the moment but that may change to an lsd at some point along with a different ratio.

Ned.


I'd certainly try it with the 3.92!! As long as you have a pretty good top rev limit then with that ratio it will go like greased 5h1t off a shovel off the line!!

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ned

posted on 4/4/05 at 11:50 AM Reply With Quote
quote:
Originally posted by NS Dev
that ratio it will go like greased 5h1t off a shovel off the line!!

that's the plan





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