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ScottR400D
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I understand that, yes, it’s a possibility. 

Current plan is to get car off ground properly and measure everything I can about diff position. 


Then remove it complete with carrier and measure what I can re position related to carrier. Then release carrier, check what clearances are there in holes and refit making sure square and tilted up as much as poss. Record any differences.  Then refit as per manual, already on bracket and see.

While it’s off I’ll drain oil from box and remove prop so joints can be checked.

Thanks, as always! 

Billy.Whizz
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So as a replacement LSD for a 420R if or when required would the Tracsport version be the better option, and does anyone know the cost of one. Thanks.

ScottR400D
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It might be, but I don’t think it fits in the BMW housing, you have to replace with the Ford diff. 

Then you need new driveshafts. 

And a new propshaft. 

I’m not aware that any other LSD will fit in the BMW housing but stand to be corrected.

 

 

 

 

aerobod
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There maybe the possibility of using a BMW small diff LSD from companies such as Wavetrac or Quaife (Torsen helical gears) or OS Giken (clutch packs) and possibly other manufacturers. Most of the non-///M BMWs had one of 3 sizes of differential which is common for most cars from the mid 90s even into current models. The Caterham diff is the smallest of the 3 standard diffs.

James

Tazio
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Tracsport is around £1100.....

ScottR400D
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A small price to pay if it doesn’t need rebuilding every 5 minutes, it’s only £100 more than the Titan from CC. But it doesn’t fit the BMW housing, does it?

If it does I’d be up for changing. 

Nigel B
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I was looking at Drexler differentials the other day. Would this be suitable? Is it the 168 diff that Caterham use? I might be wrong...