Very nice work he does there!
Similar to mine then. A 1410 joint has an operating angle of up to 37*. Mine is around 30* with no load on the rear yet and it does fine as is. Once the camper box is on it, it will sit lower and have a better angle. Currently my driveline is down 5* and the pinion is up 5. Once the truck is weighed down I will probably adjust the pinion down a couple degrees so it comes up to 5* under load.No issues that I am aware of and I was on the 2,000 mile (4,200 km) trip, driving it to Arizona. Matt did look at several options for rotating the pinion up and we discussed using shims if the need arose. All good for now and the truck will be back in his shop in a few weeks, so we will check over everything at that time.
EDIT: If I recall correctly, the output yoke and the pinion are supposed to be in the same plane, with the drive shaft (prop shaft) connecting the two. We are running bog standard U-joints, not CVs, hence the flat pinion: