Rodbr Posted May 17, 2018 Report Share Posted May 17, 2018 Rebuilding the original rear axle on my 2 and would like information and assistance. Size of backplates and drums fitted to the early cars sub first 500. 9" or 10" Were the wheel cylinders the same for both brake sizes? I have had one of the studs in two brake shoe "abuttments" break due to dissimilar metal corrosion. Used all caution when doing this and it still broke!!!! Are these the same on both 9" and 10" logically looking they should be! Could do with one perhaps two of these, can anyone help out.????????????? Quote Link to post Share on other sites
MJF Posted May 17, 2018 Report Share Posted May 17, 2018 Looking on the Moss web site: 9inch rear drums were fitted up to TS5442, which is confirmed by my car which is number TS2453 and has 9in drums. Wheel cylinders and abutments ran through to TS13045, so yes sounds like they should be interchangeable. Sorry, don’t have any spares. Martin Quote Link to post Share on other sites
Rodbr Posted May 17, 2018 Author Report Share Posted May 17, 2018 Hi Martin, Many thanks for the information. I thought that mine should be 9" as that is what is fitted. But you never know. The axle serial number closely matches the EB number as on early cars. Found the previously restored back plates with abuttments refurbished so I am OK now. will keep broken ones as I may be able to get them drilled and new studs fitted. Quote Link to post Share on other sites
vivdownunder Posted May 20, 2018 Report Share Posted May 20, 2018 Careful if looking at fitting 10" rear wheel cylinders to 9" backing plates. Bores were the same but there was an upgrade to the handbrake lever that slid the wheel cylinder along to lock the brakes on. Quote Link to post Share on other sites
roger murray-evans Posted May 20, 2018 Report Share Posted May 20, 2018 Rod, My TR2 (pre TS100) has 10" drums on it's Lockheed axle.Axle number is the same as gearbox , body EB number and commission number. Of course, they most probably were upgraded from 9" when they became available?? Roger M-E Quote Link to post Share on other sites
BlueTR3A-5EKT Posted May 24, 2018 Report Share Posted May 24, 2018 (edited) The TR2 Lockheed rear wheel cylinder bore was same 9" to 10". The metal handbrake lever in the cylinder changes in shape between 9" and 10" - Interchangeable as a pair when fitted to an axle, so the handbrake remains balanced. I have NOS brake abutments (same for 9" & 10" shoes) plus cylinders and handbrake levers for 10" shoe types. PM if interested. Cheers Peter W Edited May 24, 2018 by BlueTR3A-5EKT Quote Link to post Share on other sites
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