i have a uk six in my classic and allways thought it should have a 3.9 rear diif, but i have been reading that the uk six speed should in fact have a 3.7 diff is this true? if so what diff woukd a my05 sport have in it? thanks for any help John

 

UK cars have a 3.54 cw&p due to the 1.1:1 transfer.
JDM cars have a 3.9 cw&P and 1:1 transfer.

You need a 3.54 cw&p or you need a 1:1 transfer

 

thanks for the fast reply you dont know if a m05 uk sport has a 3.54 cw&p do you ? cheers John

 

certainly classic sports have a 3.9cw&p

 

Thanks alot for your help on this, you dont know anyone thats selling a 3.54 do ya lol thanks again john

 

here are some links hope it helps

Manual transmission ratio chart

The SPDA - Transmission Chart