(GTG103) is of a very good quality card and is 1.5mm thick. MG MIDGET 1500 ; YEARS 1974-1979. This cost effective but high quality part may well be the answer.
MG Midget 1500 / Triumph Spitfire 82° Deg Thermostat kit GTS104 GTG103
MG MIDGET 1500 ALLOY ROCKER COVER & NUTS & CHROME CAP TRIUMPH SPITFIRE 1500
Mg Midget 1500 Spitfire 1500 Slave Cylinder Housing Original.
MG Midget 1500 , Triumph Spitfire MKIV- 1500 , Link, alternator adjuster,156464
MANIFOLD GASKET SET TRIUMPH SPITFIRE / DOLOMITE 1500 & MG MIDGET 1500 HS4
MG NEW MG MIDGET 1500 SPITFIRE ROCKER COVER GASKET ***
