Back to the lath this afternoon and made the two other parts for the diff . The counter thrust bearing (the little one) is no going to be in the outdrive as there just was not space , instead its inside the right side of the diff inside a collar , the collar is then inserted into a sleeve on the spindle that takes drive to the right hand wheel , the spindle has a hole all the way through and this is where a hex key is inserted to adjust the diff , the two right hand parts will be green locktighted together , theres a large surface area for it to work on , if it does not hold then I'll add three grub screws as there's enough meet for a threaded hole but my guess is that the locktight will work , in order to service the diff counter thrust bearing it will mean heating it to melt the locktight but the sprocket can be removed before heating as its the only plastic part .
Anyway pictures , still not finished but you'll get the idea.
First next to a genuine but worn original drive , its actually 0.15 mm shorter from outdrive to bearing than the original.
Adjustment method.
The guts.
