John Morrison Posted December 26, 2018 Report Share Posted December 26, 2018 Quick question, I know there were different A type overdrives saloon v TR but did the same apply to J types? and if yes what to look for in identifying? John. Quote Link to post Share on other sites
harlequin Posted December 26, 2018 Report Share Posted December 26, 2018 The gearbox and J type overdrive in my 6 came from a saloon, and the only difference from the outside was the flange for the propshaft has a different hole spacing. It was a long time ago when I fitted it so the details are vague but the flange from the non overdrive gearbox would not fit the overdrive output shaft. I had 4 extra holes drilled at 45° to match the TR6 propshaft and its worked well for the last 20 years George Quote Link to post Share on other sites
glasgow4a Posted December 27, 2018 Report Share Posted December 27, 2018 John, a merry Christmas to you. The man to ask about overdrives is our group leader Steve Craig, he can be contacted on cheers Ian. Quote Link to post Share on other sites
John Morrison Posted December 27, 2018 Author Report Share Posted December 27, 2018 Cheers Ian, and wishing you a traditional Hogmanay when it comes. I've noted and deleted the Tel Number, Ian Tahnks. John. Quote Link to post Share on other sites
Will Posted December 27, 2018 Report Share Posted December 27, 2018 John, There are differences in reduction ratio. The ID Plate number will start with (I think, others may confirm) Triumph TR6 - 25; Volvo - 27; Healy - 28. Quote Link to post Share on other sites
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