Thanks gents. I shall pass this on.

Some AEC gearboxes had a large removeable (keyed)splined hub on the input shaft. This is much larger than what one might be expecting. If this is the set up on this particular vehicle then IIRC this has to be pulled off the input shaft after undoing the securing nut, in order to change the release bearing. The matching splines in the centre plate are obviously the same size. There are also two alternative types of clutch withdrawal bearing carriers which are not directly interchangeable, these match with specific alternative cross shafts and pressure plates. It looks like this has to be dismantled to see what is fitted. Clutchfix will want the flywheel anyway I expect, and that is likely to be fun to remove... I can't swear to it because the Renown may have a remote mounted gearbox but this might be an engine out job and that is another kettle of fish entirely.

Clutchfix 01274 877322. Used to be run by a lady called Diane, she packed the business in, her sons bought it and all the patterns. they can make and have made a clutch bearing carrier for me for a client in Austria for a Lodekka. Cleckheaton sounds familiar.

My bus number (if any): RML2532

For information, Truckfix became Clutchfix following family illness. daine who used to run Truckfix became ill and family members bought the business assets and it became Clutchfix. I can highly recommend them if anyone needs a clutch repaired or completely rebuilt. As I said in an earlier post they rebuilt a Bristol Lodekka clutch for me for a client in austria. It took a couple of months and cost a couple of thousand ££s, but that included carriage both ways for the old parts as patterns and the rebuilt unit. Excellent service.

My bus number (if any): RML2532