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MG Car Repair/Speedo cable - MGBGT with Overdrive


Hello Barrie. How long should a 1970 MGB GT right handed speedo cable be?
Some said 50 ". Pls advise.
Thank you.

Hi Lim.

The MGB used at least five different speedometer cables during its production run.  The shortest was 3ft 3inches and the longest was 5 feet long (152 cm).  All MGBGTs from 1965 to 1976 with overdrive need the longest one, part number GSD117.  

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Barrie Jones


MG Sports Cars from 1949 to 1980 - Including MGB, MGBGT V8, TF1500, TF, TD and modern Midgets. I also specialise in SU carburettors, Lucas wiring, suspension, steering & brakes.


I have owned my 1955 TF1500 since 1966. Technical specialist for the TD and TF with the MG Car Club T Register. Also owned 20 MGBs and currently own an MGBGT V8. Written 3 books on MGs and produced a DVD on how to strip and rebuild the TD/TF gearbox.

MG Car Club.

Barrie's Notes on the 1953-55 MG TF (author). /=====/ Barrie's Notes on the MGB (author). /=====/ Barrie's Notes on the MGB GT V8 (author). /=====/ The Essential Buyer's Guide to the MG TD, TF and TF1500. (author)

M Phil, C Eng, BSc (Eng).

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