1360cc Tu Clutches, What Differences Are There?

[Toilet Duck 0]

If it is assumed that from about 1988 (according to the Haynes manual) that the 1360cc engines were TU models as opposed to the earlier XY units.

 

What differences are there between the clutches, as it seems like every couple of years theres a different part number? If they are all the same fitting, then would the later part numbers be a stronger or better choice for my car, or is it a case of one size fits all?

[Sandy 191]

From late 1987 it's TU engine and MA box. The 1360 clutches were all the same 180mm design AFAIK.