Tail shaft phasing for VN. VP and VR, (V6?)

[vlad01]

All 3 are standard height, all are manual as well.

[VK_3800]

The different centre offset for the IRS cars is to induce a angle over the uni joints, if it was fitted the same as the live axle cars the uni's would fail a lot sooner as the shaft would basically be inline from the transmission to the dif. Uni's need a few degrees of angle to ensure the roller elements actually roll ensuring a long working life.

Yes but remember that same logic has to apply to the front uni, there must be additional angles at play.

[immortality]

All 3 are standard height, all are manual as well.

My VN at stock ride height had spacers for the centre mount. Not huge I'd guesstimate ~4mm.

[immortality]

The different centre offset for the IRS cars is to induce a angle over the uni joints, if it was fitted the same as the live axle cars the uni's would fail a lot sooner as the shaft would basically be inline from the transmission to the dif. Uni's need a few degrees of angle to ensure the roller elements actually roll ensuring a long working life.

Yes but remember that same logic has to apply to the front uni, there must be additional angles at play.

When I get the Senator up in the air I'll try to get some accurate measurements . Good excuse for a laser level ....

[vlad01]

Not totally accurate as I don't have the rear lower arms in yet, but the diff flange at 0 ish deg reference and pretty much 0 absolute at full extension, the tail shaft rear section angle was about 7 deg difference.

All my cars have the center support spacers, I have not played with them before but I am aware that you can fine tune with them. My VP S with factory FE2 has these spacers as well and from a glance it also has the 30ish odd deg + phasing.

Speaking of, I measured a spare auto shaft just before with good accuracy, it was pretty much bang on 33º +

I have a genuine T5 shaft but I cut the rear half off getting it out of the car years ago since it was ridiculously rusted I didn't dare attempt to try unbolt anything. So I can't tell what angle for sure, but the yoke weld ends comparing to the auto one, seems to suggest it was at the same angle as I measured on this auto one. All of my cars wit the original shafts seem to be this value so far.