mattyb Posted July 25, 2023 Report Share Posted July 25, 2023 (edited) Trusting this isn't a daft question ....... I have acquired a saloon J type overdrive box and wish to fit this to my US spec 1974 car - the gearbox main shaft flange has to match the pinion flange - is it easy to swap the main shaft flange with part no 160292 J type box flange, or get the J type box flange holes drilled to match the diff ? If drilling, can this be done with the flange in situ ? cheers Matt Edited July 25, 2023 by mattyb checked parts cat Quote Link to post Share on other sites
harlequin Posted July 25, 2023 Report Share Posted July 25, 2023 When I did mine I took the saloon flange to a local machine shop and using the TR flange for reference they drilled an extra set of holes between the originals. I doubt that the results would be accurate enough if you were to leave the flange on the box when it's being drilled, and unfortunately if its not dead right you will have vibration from the off centre propshaft. George Quote Link to post Share on other sites
Malbaby Posted July 25, 2023 Report Share Posted July 25, 2023 13 minutes ago, harlequin said: When I did mine I took the saloon flange to a local machine shop and using the TR flange for reference they drilled an extra set of holes between the originals. I doubt that the results would be accurate enough if you were to leave the flange on the box when it's being drilled, and unfortunately if its not dead right you will have vibration from the off centre propshaft. George Same here. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted July 25, 2023 Report Share Posted July 25, 2023 Yes redrill. As specified by Pete Cox in the Moss printed TR250/5/6 spares catalogue Get a free copy and enjoy the information. Quote Link to post Share on other sites
mattyb Posted July 26, 2023 Author Report Share Posted July 26, 2023 Many thanks for the replies - Peter W many thanks for the tip re the Moss catalogue - I have found the relevant section Matt Quote Link to post Share on other sites
matt george Posted July 26, 2023 Report Share Posted July 26, 2023 Matt, I also fitted a J-type saloon box into my ex-US TR6. Overdrive Repair Services can supply a replacement flange with the correct hole spacing etc, which is what I used. Matt Quote Link to post Share on other sites
mattyb Posted July 26, 2023 Author Report Share Posted July 26, 2023 M 6 hours ago, matt george said: Matt, I also fitted a J-type saloon box into my ex-US TR6. Overdrive Repair Services can supply a replacement flange with the correct hole spacing etc, which is what I used. Matt Many thanks Matt - was this featured in PC ? if so, can you remember which issue ? Quote Link to post Share on other sites
matt george Posted August 3, 2023 Report Share Posted August 3, 2023 Matt, I've checked back in the archive and unfortunately, other than reporting that I'd sourced a J-type O/D box for my car, I didn't write about the flange amendment and eventual fitment. Matt Quote Link to post Share on other sites
mattyb Posted August 4, 2023 Author Report Share Posted August 4, 2023 Cheers Matt thanks for looking anyway all the best Quote Link to post Share on other sites
Kenrow Posted August 11, 2023 Report Share Posted August 11, 2023 I went the new flange direction, it was just a little bit more expensive than paying a machine shop to do the modification. Quote Link to post Share on other sites
mattyb Posted August 16, 2023 Author Report Share Posted August 16, 2023 Kenrow - many thanks - I will source a new flange cheers Quote Link to post Share on other sites
BlueTR3A-5EKT Posted August 16, 2023 Report Share Posted August 16, 2023 1 hour ago, mattyb said: Kenrow - many thanks - I will source a new flange cheers Just ring Pete Cox. https://petecoxsportscars.co.uk/ Pete Cox & Son Sports Cars Unit 25 Peltland Trading Estate, Padgets Lane, South Moons Moat, Redditch, B98 0RB E: enquiry@petecoxsportscars.co.uk T: 01527 522 646 - Work hours only. Hours Open today 09:00 – 17:00 Quote Link to post Share on other sites
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