gundersen Posted November 16, 2012 Share Posted November 16, 2012 For my winter upgrades I have bought what will become a roughly 200bhp engine and a Caterham six speed gearbox to match, and now I am looking for a differential. The car is a 2002 de'dion with an open diff and a ratio to match the current five speed gearbox, and I am looking to replace it with an LSD that will match the six speed (3.62?). I think that both plate and ATB diffs have their merits, so I am open to any of them. I would like to buy a complete diff, but I have been unable to find one used...so I need a bit of help with my options As I see it, I can: 1) Buy one from CC, but I can't seem to find a 3.62 LSD on their list 2) Buy one from raceline, they quote £995 for a complete diff incl. LSD on their website 3) ??? I hope that I have overlooked some options here Link to comment Share on other sites More sharing options...
DJ. Posted November 16, 2012 Share Posted November 16, 2012 I bought mine off ebay, as a lot of people think it is better to get an original Ford manufactured crownwheel and pinion. I then had it rebuilt by Road and Race with a Titan LSD. I'm very happy with the result and the cost was just over £1000 (about the same as swapping to an open BMW diff which I'm glad I didn't go for). I notice you'd need to add VAT to the Raceline price. I can't say I'd be willing to buy another diff from Caterham ☹️ Duncan Link to comment Share on other sites More sharing options...
gundersen Posted November 17, 2012 Author Share Posted November 17, 2012 Ahh yes VAT thank you for pointing that out , and thank you for your input. Does Road and Race supply complete diffs? Link to comment Share on other sites More sharing options...
Mankee Posted November 17, 2012 Share Posted November 17, 2012 There's a selection of 3.62 diffs available on the Caterham Parts website, but they all seem to be out of stock: recon with Quaife CWP, recon with Quaife CWP and ATB or 3.62 with LSD. If it was me, I'd look for an original Ford 3.62 complete diff off eBay or somewhere like that and then decide what diff to get and then find someone to put it all together for you. Actually, what are you going to use the car for? You might find that you'll be happy with your current 3.92 ratio after fitting the new engine and box. If so, slap an LSD in that instead. Link to comment Share on other sites More sharing options...
gundersen Posted November 18, 2012 Author Share Posted November 18, 2012 Quoting Mankee: If it was me, I'd look for an original Ford 3.62 complete diff off eBay or somewhere like that and then decide what diff to get and then find someone to put it all together for you.If I lived in the UK I would do the same But finding someone knowledgeable on "old" Ford diffs is a bit hard here in Denmark, and shipping back and forth to the UK will quickly add up. Add to that the Does not ship to Denmark trend on ebay, it would definitely be easier if I can find a whole diff Quoting Mankee: Actually, what are you going to use the car for? You might find that you'll be happy with your current 3.92 ratio after fitting the new engine and box. If so, slap an LSD in that instead.It will mainly be used on short trips around where I live and for trackdays, so that might actually be worth trying. Someone has foolishly/kindly offered to lend me a Titan LSD, so that might be worth a shot... Link to comment Share on other sites More sharing options...
Neil66 Posted November 18, 2012 Share Posted November 18, 2012 Regarding shipping to Denmark... Have you contacted the seller? I often get stuff from eBay even where they say they don't ship to Norway... Just contact the seller & they're very often willing to ship abroad... Some, of course, don't but most do Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted November 18, 2012 Share Posted November 18, 2012 I live near Road & Race. If you can find a diff you like on eBay, you can get it delivered to me, and I can take it to R&R for you. When they finish, I could ship it to you in Denmark. Link to comment Share on other sites More sharing options...
rj Posted November 18, 2012 Share Posted November 18, 2012 And I might be able to arrange something with my usual courier too. They tend to be the cheapest of all options. Their UK depot is near Dartford so Ian don't feel safe. You may well be abused Link to comment Share on other sites More sharing options...
Mankee Posted November 18, 2012 Share Posted November 18, 2012 Quoting gundersen: It will mainly be used on short trips around where I live and for trackdays, so that might actually be worth trying. Someone has foolishly/kindly offered to lend me a Titan LSD, so that might be worth a shot... Now that is a very kind soul indeed! Fire your tyre, gear ratio and diff ratio into a calculator and see if the speeds suit your needs. I've been using this one for years: http://www.gearboxman.co.uk/inforatios.html I've got a version pre-populated for the 6-speed and both 5-speeder ratios if you get bored of looking through the internet for relevant data. Link to comment Share on other sites More sharing options...
gundersen Posted November 18, 2012 Author Share Posted November 18, 2012 @Neil66: Yes I have done that occasionally, and most of the time it works. There must be some part of the seller registration processes that makes it way too easy for the sellers to dismiss Scandinavia 😬 @SM25T: That is a mighty nice offer! I will definitely keep it in mind when I go looking for the diff. @Mankee: Thanks Link to comment Share on other sites More sharing options...
gundersen Posted November 19, 2012 Author Share Posted November 19, 2012 I have just talked to R&R and given their prices it is just as cheep, if not cheaper, to have them supply a whole diff including casing than it is for me to buy a used diff and having them install the LSD. So that might just be what I do Link to comment Share on other sites More sharing options...
rj Posted November 19, 2012 Share Posted November 19, 2012 Bo, If it's any help I'm happy to arrange shipping from R&R to you. /r-) Link to comment Share on other sites More sharing options...
Rob Walker Posted November 19, 2012 Share Posted November 19, 2012 Why not contact Phil Stewart at Road and Race he probably has a diff in stock and will fit the LSD for you. If he hasn`t got one he will find one at reasonable cost. Link to comment Share on other sites More sharing options...
gundersen Posted November 29, 2012 Author Share Posted November 29, 2012 Just to finish this, I ended up buying a complete diff including Titan LSD from Road & Race. Nice people who know there stuff Link to comment Share on other sites More sharing options...
6speedmanual Posted November 29, 2012 Share Posted November 29, 2012 The BMW diff seems to be gaining quite a following... Peter Link to comment Share on other sites More sharing options...
rj Posted November 29, 2012 Share Posted November 29, 2012 BMWallah diff is another way of adding downforce. Link to comment Share on other sites More sharing options...
gundersen Posted November 30, 2012 Author Share Posted November 30, 2012 I actually thought about the BMW diff for a short while as I like the idea of a more modern unit...then I saw the weight and the fact that it doesn't seem to much (if any) better than the old unit. Link to comment Share on other sites More sharing options...
rj Posted November 30, 2012 Share Posted November 30, 2012 Well, It seems to be a lot quieter than (some of) the Sierra differential. But at a weight premium, and filled with the right oil even the Sierra diff is quiet-ish. Link to comment Share on other sites More sharing options...
DJ. Posted November 30, 2012 Share Posted November 30, 2012 Quoting gundersen: I actually thought about the BMW diff for a short while as I like the idea of a more modern unit...then I saw the weight and the fact that it doesn't seem to much (if any) better than the old unit. When I went through this, I wasn't sure whether to "upgrade" to the open BMW diff for £1020 as suggested by Caterham, or to get an old Sierra diff and a Titan LSd for the same money. I got advice from Jason Fletcher and Phil at Road and Race and I'm very pleased (relieved) I made the decision I did. Duncan Link to comment Share on other sites More sharing options...
gundersen Posted December 1, 2012 Author Share Posted December 1, 2012 Quoting DJ.: I'm very pleased (relieved) I made the decision I did. Which was? Link to comment Share on other sites More sharing options...
DJ. Posted December 1, 2012 Share Posted December 1, 2012 Road and Race Titan LSD 😬 Link to comment Share on other sites More sharing options...
Grubbster Posted December 1, 2012 Share Posted December 1, 2012 Quoting DJ.: Road and Race Titan LSD 😬 Me too 😶🌫️ Link to comment Share on other sites More sharing options...
Captain Leek Posted December 1, 2012 Share Posted December 1, 2012 And me ! R&R Titan had it for two years now mainly for track days. Very pleased. Link to comment Share on other sites More sharing options...
gundersen Posted December 2, 2012 Author Share Posted December 2, 2012 That sounds reassuring, I hope that I will be just as happy with mine Link to comment Share on other sites More sharing options...
Graham Perry Posted December 4, 2012 Share Posted December 4, 2012 Like many on here I have always been completely happy with the service from R&R. Although they operate from very modest premises the customer experience is always great. Phil fixed something for me on one of my diffs for free a few years ago as he reckoned there was a slight chance he might not have tightened something to the correct torque 4 years previous to that. In those 4 years I had done a lot of motorsport. If only more people were like R&R...... Edited by - Graham Perry on 4 Dec 2012 08:10:40 Link to comment Share on other sites More sharing options...
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