Utter Frustration, Rear Brake Caliper Carriers

[tweed]

No just unbolt the rear shocks and let the beam hang down. Plenty of room.

I coat mine in plus gas day and night for couple of days before I remove them. Spray the head of bolt and in the beam itself.

Then I use a 2ft breaker bar with a socket allenkey

[spikenipple]

When you go to put it back together, replace the bolts with A4 stainless cap screws (M10x1.25x20)

[Ess_Three]

When you go to put it back together, replace the bolts with A4 stainless cap screws (M10x1.25x20)

So you suggest replacing hi tensile steel cap screws with unknown strength stainless (of which many are soft as hell) on braking components?

Erm...I wouldn't.

Those bolts are 10.9/12.8 strength for a reason.

If you can get hold of 10.9/12.8 stainless bolts, then fine...if not, it's  stupid and dangerous to fit stainless bolts.
As far as I'm aware, most A2/A4 stainless bolts are around 8.8 strength.

[thai-wronghorse]

Exactoh,  most stainless bolts are soft as butter.

[spikenipple]

I forgot to add; A4-100 
These are the same tensile strength as 10.9 carbon steel with a very slightly lower yield point.

[Wayne]

I would not use or trust stainless bolts on the brakes myself, they tend to be really soft.

[Len]

We used SS bolts to secure many tonnes of stone to buildings! So SS bolts are not very much less strong than mild steel.

They do tend to relax a little so not really the best for brakes.
Mind you SS bolts are used extensively in some Custum Cars.

[Martinvr6]

I always grind the bolt heads flat, once the discs are off you can remove the remainder of the bolt

Much easer

[tweed]

I went to my local hardwear shop to get stainless replacements but the only thing they had with the same strength was a very similar bolt, just longer.

[ttelracs]

Thanks all for your suggestions.  With that wonderful gift of hindsight I would have gone with the Irwin bolt grip method methinks.  If I have no joy finally drilling out these bolts, I'll go that route for the upper bolt and I'll stay away from the stainless steel bolts and source some high tensile replacements.

Thanks again and I'll update on my progress...