[ScottD3]

1. If I buy new bolts, where from and what spec?

Bolts for the spacers or the wheels?
Ebay appears to be fine, they are all the same spec I believe with just the heads being different, tapered or not.

2. How do I know what torque setting to use and should I use a locking compound of some sort on the threads?

I always use 120 n m or 90 lb f.
Never used locktight, only used copper grease.


3. If new spacers, what should I be looking for. Any recommendations?

Depends on your width, if you're concerned with unsprung weight.
what ever you go for make sure they are hubcentric.
If you are not worried about unsprung weight, I'd go for anything really but H+R does get a good rep but they cost so much.

4. What width for the front spacers?

Bolt the wheels to the hub with no spacers on. Put the car on flat ground and measure the distance between the top of the wheel and the arche.
That should give you an idea of what size you can go up to before hitting the arch.

5. 20mm always looked perhaps a little too wide on the rear. Should I go for 15mm?

I'm not sure how it currently looks with 20mm on but if its not rubbing and you're happy with it, stick with them.

With your little incident that happened, are you sure the threads in the hubs are good?
Did the bolts from the spacers to the hub go through all the way and had enough threads?