Dropped bumpers off at powder coater tonight...
On the exhaust spacer thing, I measured and I reckon the exhaust spacer pushes the exhaust apart (front-to-back) about 30mm. The drivers side spacer was longer, but it is on a downward angle so it doesn't push the exhaust back the full length of the spacer. I was probably a bit generous saying I pushed the pipes together 1/2" - but given the amount of effort pushing them together, I will give myself 10mm.
So the rubber hangers are not at 45deg angle... but they are at a bit of an angle. Not enough for me to be concerned about. Tried to get some pics of them... kinda hard to get in there at the right angle.
This is the back one, on the passenger side:
This is the font one, kinda above the cross member:
This is the clearance of the exhaust from the rear cross member... I hung off the exhaust and pushed and pulled and rattled it around as hard as I could, and no contact anywhere:
And lastly - this is the rear hanger on the drivers side... this one is oriented different, at 90 deg to all the others, so you can see that the metal hanger is pushed further through the rubber than 'stock'... but its not stressed or at an angle:
Good enough for me... will also be installing new front and rear driveshafts later in the month, to be sure, to be sure...
S.