Although the smaller displacement cars make greater use of the indirect gears all of them, from the most humble MG TD thru the Jaguar E-type, seem to need some attention to the gearbox sooner or later, although the 4 synchro MGB is the notable exception. 

At Sports Car Services, we are well familiar with almost all of them and we also have the Churchill special tools to make the necessary repairs correctly and efficiently.  In addition, we also have special tooling commissioned to accurately install the later MGA gear ratios into TD & TF rear axles.  Here are some random pictures from our driveline shop.