There are several pads that will fit. The FMSI Pad number is D161( D002, D057, D114, D161 ). That cross references with the following: Source Hawk Performance Pads.

FMSI D002, D057, D114, D161. Fits:
1964-68 Austin Healey 3000
1967-69 MGC
1977-80 Datsun 810 / 910, 1970-78 Datsun 240Z/260Z/280Z
1975-81 SAAB 99, 1979-87 SAAB 900
1975 Toyota Corolla SR5, 1972-82 Corona, 1978-80 Cressida
1966-71 Triumph GT-6, 1957-72 TR series
 

Edited April 13, 20168 yr by Chickenman

The 240Z caliper and the Girling caliper is very close. The TR6 uses two different pads. Early and late series.

I should not have said the same pad.  May not be exact.. You may have to do some trimming.

I need to check further. I sold my TR6 36 years ago.

Just a thought and i don't know if they are still available but, look at METAL MASTER's selection.

Used to love Metal Masters. Made by Repco I believe. Haven't seen them in Canada for a while. .Great semi- metallic pad that could be used for just on the street, Autocross, Hillclimbs and Track Days.  Ran them on my 71 Z and 73 Camaro RS. Should be available still in UK.

Bendix Titanium were good as well, but Bendix closed down Canadian distribution some time ago...