Dan.
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| posted on 7/9/09 at 09:06 PM |
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Another query...
I have been offered a diff with the folwing code: 83BG-4033-BA does the BA on the end confirm the ratio code, if so what is the ratio?
Thanks
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Relph
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| posted on 4/11/09 at 11:07 PM |
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quote:
Originally posted by Dan.
I have been offered a diff with the folwing code: 83BG-4033-BA does the BA on the end confirm the ratio code, if so what is the ratio?
Thanks
I also have the same diff code as this, anyone know the ratio yet ?
Cheers.
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Dan.
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| posted on 4/11/09 at 11:38 PM |
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quote:
Originally posted by Relph
quote:
Originally posted by Dan.
I have been offered a diff with the folwing code: 83BG-4033-BA does the BA on the end confirm the ratio code, if so what is the ratio?
Thanks
I also have the same diff code as this, anyone know the ratio yet ?
Cheers.
After looking at so many diffs I believe it is a 3.62 non LSD. The deal never went through as I was offered one lcally, so I didnt get the cance to
check.
If you have the diff to hand, just turn the input shaft and count how many turns you have to turn to get the output shafts to complete one
rotation.
To check if it is an LSD hold one of the output shafts so it cannot rotate, turn the input shaft, if you can still turn the input shaft freely without
the held output shaft moving it is open, if the output shaft cannot be held in place whilse rotating the input shaft it is an LSD (or someone has
welded it!)
Hope this helps
Dan
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Relph
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| posted on 5/11/09 at 10:59 PM |
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Hi mate, the propshaft turns just under 4 times to 1 turn of the wheel so i suspect its a 3.92 and when you have the rear jacked up and turn one wheel
the other side wheel turns the same way so i think its an LSD or been welded.
So 3.92 LSD i think, but would be nice to get it confirmed using the code stamped on it.
Cheers
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Tommy P
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| posted on 15/1/10 at 04:29 PM |
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Just to add a bit more to this thread
I have a sierra diff hanging about in my garage which is a 3.62 I think.
it's code is = 83BG4006RG and 4A3624M07
Is the 83 the year and what does the RG signify
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shaun megablade
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| posted on 20/1/10 at 04:20 PM |
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hi have a 3.14 diff,i was told its an lsd,do they make one from factory?
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Dan.
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| posted on 21/1/10 at 03:16 PM |
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quote:
Originally posted by shaun megablade
hi have a 3.14 diff,i was told its an lsd,do they make one from factory?
Not that im aware, lots of people assume all dierra diffs are LSD though... just rotate one side of the diff if the other side rotates the opposit
direction its an open diff.
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filemon
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| posted on 26/1/10 at 07:50 PM |
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Hello,
I'm new here, but would like to update list from front page.
Diffs:
Sierra 1987-1993:
91GG 4006 ABA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 GA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio typ 2
91GG 4006 AAA - AXLE ASY-RR LWHD & B 3.36 Sierra/Granada/Scorpio LSD typ 2
85GG 4006 DC - AXLE ASY-RR LWHD & B 3.92 Sierra/Granada/Scorpio typ 2
V87BG 4006 BAA/CAA/DAA - AXLE ASY-RR LWHD & B 3.62 Sierra/Granada/Scorpio LSD typ 2
V86BB 4006 AAA - AXLE ASY - RR LWHD & B RATIO 3.64 Sierra Cosworth LSD typ2
Sierra 1982-1986:
V86BB 4006 AAA - AXLE ASY - RR LWHD & B RATIO 3.64 Sierra Cosworth LSD typ2
V87BG 4006 BAA - AXLE ASY-RR LWHD & B 3.62 Sierra/Granada/Scorpio LSD typ 2
Granada/Scorpio 1985-1992
85GG 4006 ACA - AXLE ASY-RR LWHD & B 3.64 Granada/Scorpio LSD typ2
85GG 4006 AAA - AXLE ASY-RR LWHD & B 3.36 Sierra/Granada/Scorpio LSD typ2
91GG 4006 AAA - AXLE ASY-RR LWHD & B 3.36 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 ABA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 ACA - AXLE ASY-RR LWHD & B 3.64 Granada/Sierra LSD (Cosworth) typ2
91GG 4006 GA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio typ 2
91GG 4006 ADA - AXLE ASY-RR LWHD & B 3.64 64 Granada/Scorpio LSD (Cosworth) typ2
Granada/Scorpio 1992-1994
V87BG 4006 BAA - AXLE ASY-RR LWHD & B 3.62 Sierra/Granada/Scorpio LSD typ 2
85GG 4006 DC - AXLE ASY-RR LWHD & B 3.92 Sierra/Granada/Scorpio typ 2
86GG 4006 AAA - AXLE ASY-RR LWHD & B 3.92 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 AAA - AXLE ASY-RR LWHD & B 3.36 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 ABA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio LSD typ 2
91GG 4006 ACA - AXLE ASY-RR LWHD & B 3.64 Granada/Scorpio LSD typ 2
91GG 4006 GA - AXLE ASY-RR LWHD & B 3.91 Sierra/Granada/Scorpio typ 2
Scorpio 1994 – 1998
95GG 4006 AAA - AXLE ASY-RR LWHD & B 4.09 Granada/Scorpio LSD typ2
95GG 4006 ACA - AXLE ASY-RR LWHD & B 3.64 Granada/Scorpio LSD typ2
96GG 4006 CA - AXLE ASY-RR LWHD & B 4.09 Granada/Scorpio typ2 different mounting bracket (koala)
96GG 4006 BAA - AXLE ASY-RR LWHD & B 4.09 Granada/Scorpio LSD different mounting bracket (koala)
96GG 4006 DA - AXLE ASY-RR LWHD & B 4.27 Granada/Scorpio typ2 different mounting bracket (koala)
96GG 4006 BCA - AXLE ASY-RR LWHD & B 3.64 Granada/Scorpio LSD typ2 different mounting bracket (koala)
96GG 4006 BDA - AXLE ASY-RR LWHD & B 3.36 Granada/Scorpio LSD typ2 different mounting bracket (koala)
95GG 4006 AA - AXLE ASY-RR LWHD & B 4.09 Granada/Scorpio typ2
95GG 4006 JA - AXLE ASY-RR LWHD & B 3.64 Granada/Scorpio typ2
95GG 4006 LA - AXLE ASY-RR LWHD & B 4.27 Granada/Scorpio typ2
Typ 2 means that diff got bolted driveshafts.
I will update list for different ratios in few days
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nz_climber
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| posted on 5/2/10 at 11:45 PM |
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I have just brought a Diff from a 88 sierra with disc brakes, My friend has picked it up
Has the following codes:
88GG JB 392 4A0E04
Its a New Zealand car so this might be why I can't find any information about the ratio.. but guessing from the numbers its a 3.92:1?
http://aarons7.wordpress.com
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Rob E
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| posted on 26/9/10 at 07:32 AM |
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So what would be a desirable diff and why ?
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ZEN
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| posted on 26/9/10 at 05:19 PM |
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It depends on the wheels dimension, transmission ratios and engine RPM you are going to use.
For example for a higih reving BEC application with 13" wheels you should go for a long ratio diff like the 3.14
My YouTube channel Cars, bikes - track days, motorsport, sim racing and more.
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needforspeed
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| posted on 27/9/10 at 07:05 PM |
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hi, im running a 7'' lsd from a 4c4 cosworth whats the lowest ratio available for these?
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sebastiaan
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| posted on 20/10/10 at 07:01 PM |
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Right, here's what I've found out about the 6,5" diff over the last two weeks for future reference.
Fozzie, if you feel this should not be included, feel free to delete.
The 6,5" diff has a 6,5" diameter crownwheel (duh..) and the same mounting arrangement as a 7"diff. It exclusively uses push in
shafts that are not interchangeable with the 7"diff as they have a different number of splines at the diff end (6,5" diff has 23 splines,
7" diff has 26 splines).
The driveshaft bearings and oil seals are not available in a rebuild kit, but have the following partnumbers:
Bearings: SKF K-LM29749
Oil seals (output shafts) 83BG-3K169 A5B (or A58, I'm not sure on that one)
For the oil seals I have used generic 40x55x10mm oil seals. Whilst the diff is not running yet, they fit the casing and driveshafts well, so I
don't expect any problems there.
I do not know the part numbers and/or dimensions of the pinion bearings and seals as I've left that well alone.
Oh, and it seems the 6,5" diff is a few (4?) kg lighter then a 7" diff.
A lot of this information came from Matt's website: CLICKY who is also a
member on here. Matt, thanks!
Regards,
Sebastiaan
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seventhheaven
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| posted on 2/12/10 at 01:26 PM |
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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
4wd 3.9 Rover V8 Locost 7 - Super 7th Heaven
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kensprin
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| posted on 18/7/11 at 10:06 PM |
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I'm trying to found out what diff I have. The tag is completely rusted out. Can't make head or tail of the numbers. The number on the
bottom casting reads
93bg-4033-ae any ideas. As I turn it it could bd a 3.6
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seventhheaven
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| posted on 19/7/11 at 06:55 AM |
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ratios
You can turn it and count the rotations but the only real way is to remove the rear cover.
The 4033 parts are mostly from Granada's and Scorpios.
If you remove the rear cover there should be some white or yellow painted writting on the crown wheel.
If this is missing it should also be stamped into that wheel as well.
See http://www.super7thheaven.co.uk/Sierra_Rear_Differential. Hope that helps.
4wd 3.9 Rover V8 Locost 7 - Super 7th Heaven
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chamanne
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| posted on 10/4/12 at 06:34 AM |
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Hello guys,
I've just bought a sierra from the 11 june 1990.
WF0BXXGBBBLJ30605
Fitted with a 2.0 DOHC engine
Normally, it's a XR4I.
The question is : is it a limited slip diff ?
With ratio ?
Franck
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seventhheaven
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| posted on 10/4/12 at 07:00 AM |
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Whether it is limited slip or not, there is only one true way to tell and that is to check the small metal tag on the diff. Ford were strange when it
comes to LSD, some had it, yet other identical cars didn't. I have a 2.0DOHC 4wd and it is LSD but that doesn't mean yours will be too.
Mines a 3.92 but yours could be 3.62 or 3.92:1.
It begs the question - 'who was on LSD?'
I'm afraid I'm not into Ford numbers enough to decode the VIN number.
Sorry, but I think you've gotta get under that rear end 
4wd 3.9 Rover V8 Locost 7 - Super 7th Heaven
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chamanne
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| posted on 10/4/12 at 09:44 AM |
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quote:
Originally posted by seventhheaven
Sorry, but I think you've gotta get under that rear end
I've found it :
88GG JB 392 (so a 3.92:1 ??)
4A 0E08
Who can help me ?
Limited or not ?
Thanks in advance
Franck
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seventhheaven
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| posted on 10/4/12 at 10:11 AM |
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Unfortunately, you've got one of the diffs with the shorthand code.
But....
You have a 3.92:1 diff. Built May 8th 1990.
The JB suggests it's non LSD
Really, you need a diff with AEA or AA (anything with 2 x 'A' in it) where the JB is.
4wd 3.9 Rover V8 Locost 7 - Super 7th Heaven
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scott-78
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| posted on 27/8/12 at 03:23 PM |
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i am after a 3.92 LSD and been offered what Im told is one.... it has the following numbers:
ford 83 BG-4210-J E 3.92
89 GG-4k 343-FB
Is this the real deal? Would I be laying down a proud set of '11s' in the road, or foolishly spinning one wheel with an empty wallet??
Some knowledge on this one would be much appreciated guys....
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seventhheaven
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| posted on 27/8/12 at 09:45 PM |
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Bit suspicious
Have you tried turning the front flange? The two shafts should turn the same way. Hold onto one of the output flanges to make sure.
Sorry, but the code suggests it's not an LSD.
Under 99.9% of cases, an LSD would have at least two A in the code e.g. 83 BG-4210-AA and not 83 BG-4210-J.
It looks like a bog stock Sierra diff to me.
4wd 3.9 Rover V8 Locost 7 - Super 7th Heaven
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scott-78
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| posted on 27/8/12 at 10:15 PM |
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my car already has a 3.92 standard diff, the last thing I want is a duplicate :-)
The owner of this is convinced his is an LSD but I didnt think the codes reflected this either. Have messaged instruction to him to test it and get
back to me.
Thanks for the reply, always re-assuring when someone says the same as I thought.
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CNHSS1
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| posted on 28/8/12 at 02:14 PM |
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if its an aftermarket LSD (Tran-X, quaife, Gripper, ZF etc) the case tag may still show the non-lsd number. whip off back plate and take pics and post
up here
"Racing is life, everything else, before or after, is just waiting"---Steve McQueen
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scott-78
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| posted on 28/8/12 at 05:40 PM |
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