Not AFAIK on the CL, but one can be fitted from the following:
"S", "CLX" and maybe some of the named ones "Tachini", "Dance", and the Lancia Y10. (anyone else add to these?)
Worth doing when you get the gearbox out to fettle the clutch.
The driveshafts may be slightly different lengths, so sure you get them from the donor - if only for the tripod joints which are worn to fit that gearbox.
Do the inboard driveshaft boots while you're there.
If your 4 speed is GWO with synchromesh on 3rd and 4th it is a saleable item (not as desirable as the 5 speed, but of some value).
