Dave connors Posted October 31, 2021 Share Posted October 31, 2021 Anyone know what size the 2 lower diff bolts are, sierra diff. Link to comment Share on other sites More sharing options...
garybee Posted October 31, 2021 Share Posted October 31, 2021 Is it just the thread size you need or the length also? I have a spare diff I can check if the former. Link to comment Share on other sites More sharing options...
Dave connors Posted October 31, 2021 Author Share Posted October 31, 2021 Its the thread size i need, I think its imperial Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 31, 2021 Member Share Posted October 31, 2021 I'm away from my library, but this thread (!) has "special M12 x 65mm" and some discussion:https://www.lotus7.club/comment/2330658#comment-2330658JonathanPS: Please let me know if you'd like a copy of the Assembly Guide. Link to comment Share on other sites More sharing options...
Roadsport06 Posted October 31, 2021 Share Posted October 31, 2021 A fastenings list is here.https://www.lotus7.club/guides/technical-information/bolt-listhttp://tripleeracing.co.uk/CaterhamPartPacksImperial.pdf Link to comment Share on other sites More sharing options...
Dave connors Posted October 31, 2021 Author Share Posted October 31, 2021 thanks looks like its a 65mm x 12mm bolt Link to comment Share on other sites More sharing options...
Ian Macquarie Posted October 31, 2021 Share Posted October 31, 2021 My 1990 build manual describes them as:the lower forward mounting is attached to the chassis using two special 12mm X 65mm , 1/2" shank bolts through the metalastic bushes.newer cars may have 12mm bushes rather than the 1/2" ones in my 1990 dedion.Ian Link to comment Share on other sites More sharing options...
Area Representative Richard Price Posted October 31, 2021 Area Representative Share Posted October 31, 2021 thanks looks like its a 65mm x 12mm boltDave,Beware! These are not simply "65mm x 12mm bolt", the are specials, and described as "M12 X 65MM WITH 1/2" SHANK"https://caterhamparts.co.uk/bolts/1465-bolt-m12-x-65mm-with-1-2-shank.html?search_query=79046&results=1 Link to comment Share on other sites More sharing options...
Dave connors Posted October 31, 2021 Author Share Posted October 31, 2021 That's odd I e measured the Bush id and .500 wouldn't fit it seems to be made for a 12mm shaft Link to comment Share on other sites More sharing options...
Area Representative Richard Price Posted October 31, 2021 Area Representative Share Posted October 31, 2021 Dave,'sorry, I guess we should have clarified what year of chassis you need these bolts for.What year is your chassis?The special bolts l linked to are to suit Imperial chassis (S3 and SV, 2006 and earlier, and all CSR's). Link to comment Share on other sites More sharing options...
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