I've been mostly doing my back in stripping the subframe, jeez some of the bolts gave me real aggravation. The NS compliance bush centre bolt was an absolute nightmare. I had a 1/2" drive knuckle bar AND a four foot trolly jack handle slid over it. In the end it tore the centre pin out of the bush but at least I got it all off and I can cut off the bolt. The bush housing wasn't much better to get off. The other side almost fell apart, flipping typical!
On the welded on rear discs. Sorted! Drill a hole in the disc, put a long bolt with a nut on the inside and let the bolt force the disc off against the hub carrier.
13mm bolt and nut, keep the bolt still and turn the nut until the disc cracks then use a wedge on tother side and off it comes.
More tips for rusted bolt heads. A 1/2" AF socket is slightly smaller than a 13mm. Tap it on the bolt/nut and it usually does the job, for 10mm bolts use a 3/8" AF socket and if all else fails you can hammer on a spline socket but you need to use the very heavy duty 1/2" drive set for this.
Second tip, go over the threads with a fine brass wire brush in a drill. Only use a brass one as it will dig out rust and dirt much better than the steel ones, then give the threads a squirt with white grease.
This compliance bush was the nightmare one.
I've left the engine and gearbox in situ to add weight and stability while cracking all the nuts and bolts, most of them are now either loose or removed.
Cheers
Geoff.