I've owned #6904 for 21yrs now , and I'm now noticing what seems to be excessive "free play" or backlash in the ZF. I can feel it in the driveline when releasing the clutch, as well as see it by hand where the u-joints attach to the ZF.
My Question is this- With the ZF removed from the car, would it be a matter of "shimming"the ring gear to an acceptable spec, and would that be possible with total dissassembly of the ZF?
It is a -2 and I have had it out several times over the years. (Saftey wiring, etc.)