Technical help Q & A Got A technical problem with you car? Keep it in here where the techies hang out and we will try to solve it for you!!

What size diff do I have?

Thread Tools
 
Search this Thread
 
Old 25-12-2005, 11:08 AM
  #1  
Bill Sherwood
15000
Thread Starter
 
Bill Sherwood's Avatar
 
Join Date: Jul 2003
Location: Australia
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Default What size diff do I have?

I'm trying to get a 4.1:1 ratio for my Se7en clone and I just want to make sure I'm chasing the right one.
Here's the diff in the back of the car ->



Is that a 7" diff?
I was told it's a 7.5" but I don't know a lot about them and I'm not sure if such a thing exists. It's got a Quaiffe Torsen LSD in it.
Old 26-12-2005, 08:46 PM
  #2  
colin mcandry
Virgin
 
colin mcandry's Avatar
 
Join Date: Nov 2005
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default Hi

Your diff is a 7.5" as fitted to the Granada 100mm joints, and Sierra Cosworth 109mm joints. You need a 7" Sierra unit to fit a 4:1 cw+p, Kam Diffs make them.
You'll be lucky to get much help on this site, it's full of kids and dreamers telling each other stories. If you're over 12yrs you'd be better served on Locostbuilder.
If you were in UK I'd buy the 7.5 off you
Old 27-12-2005, 12:59 AM
  #3  
Bill Sherwood
15000
Thread Starter
 
Bill Sherwood's Avatar
 
Join Date: Jul 2003
Location: Australia
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Hi

Originally Posted by colin mcandry
Your diff is a 7.5" as fitted to the Granada 100mm joints, and Sierra Cosworth 109mm joints. You need a 7" Sierra unit to fit a 4:1 cw+p, Kam Diffs make them.
You'll be lucky to get much help on this site, it's full of kids and dreamers telling each other stories. If you're over 12yrs you'd be better served on Locostbuilder.
If you were in UK I'd buy the 7.5 off you

Thanks for that.
So I guess off to the Locost site to hunt for a 7" now ....
Old 27-12-2005, 10:38 AM
  #4  
markk
10K+ Poster!!
iTrader: (2)
 
markk's Avatar
 
Join Date: May 2003
Location: Lancs
Posts: 10,638
Received 104 Likes on 96 Posts
Default Re: Hi

Originally Posted by colin mcandry
Your diff is a 7.5" as fitted to the Granada 100mm joints, and Sierra Cosworth 109mm joints. You need a 7" Sierra unit to fit a 4:1 cw+p, Kam Diffs make them.
You'll be lucky to get much help on this site, it's full of kids and dreamers telling each other stories. If you're over 12yrs you'd be better served on Locostbuilder.
If you were in UK I'd buy the 7.5 off you
a little harsh i think

as for that pic mate - how can you tell its a 7 1/2 ?

the granada 7" also uses bolt on lobro joints, and you cant tell the size of the joints from that pic. also ive used the larger lobro joints and 1/4 shafts in a 7" diff so you just guessing.

show me a good pic of the back plate on the diff pal and ill tell you what size unit it is, also if you have a pic of the diff without the drive shafts fitted i wil tell you the size of the lobro's

regards

mark

(passionford underage know nothing about nothing DREAMER)

Old 27-12-2005, 12:45 PM
  #5  
Bill Sherwood
15000
Thread Starter
 
Bill Sherwood's Avatar
 
Join Date: Jul 2003
Location: Australia
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Default

I don't happen to have one handy sorry, but is the info that it's got a Quaiffe Torsen LSD any help?
Old 27-12-2005, 06:26 PM
  #6  
markk
10K+ Poster!!
iTrader: (2)
 
markk's Avatar
 
Join Date: May 2003
Location: Lancs
Posts: 10,638
Received 104 Likes on 96 Posts
Default

no it could have a quaife unit on either size of diff pal
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
boeb
Ford Escort RS Turbo
5
09-01-2020 05:11 AM
Iain Mac
General Car Related Discussion.
7
30-09-2015 09:39 PM
Johnny Knoxville
General Car Related Discussion.
4
30-09-2015 07:21 AM
DavidK
Ford Sierra/Sapphire/RS500 Cosworth
1
27-09-2015 02:55 PM



Quick Reply: What size diff do I have?



All times are GMT. The time now is 11:51 PM.