Yup. Ring gear and pinion from an older Mk6 Hewland which used stock more stock VW parts, namely a stock VW differential, ring gear and pinion shaft. The 8:33 is a real stump puller Have it
in my Bobsy FF. And to use taller gears to get my same speeds, etc vs a Hewland 9:31 diff. (e.g. a 26/25 4th,
one over, top gear to get same results as a 24:27 in a 9:31 box.). All the hubs that slide on the pinion are unique. I think they were made by Hewland but made to work on the stock VW pinion shaft.
The bits ty-rapped-together is a set is a low ratio 1st gear. It has the lay shaft slide on part also having the reverse idler drive gear integral. A much stronger set up for such a low ration gear set which if separate would be very, very thin and will probably break. Cool set up, but requires a lay shaft without the integral reverse slider built in.
As to the odd lay shaft and gear, I have no idea what that is.