Well, two hours of that was fighting with the spring on the right side (which I did second), trying to get it compressed properly so that I could get it back in. Three or four of that was getting the diff bushings in - what a pain! Now, that said, I could probably do the whole job again in under 8 hours because I know what I'm doing now. Sort of
What I did for the subframe bushings was largely in line with the instructions, but a few things I learned:
-I saw no need to remove the rear brake calipers. Just the e-brake cable, and that's fairly simple, just remember the e-clip, which came out easily with a screwdriver;
-Drilling the bushings works well. That bit will be smoking hot when it comes out, too (don't ask how I know
);
-I think you could probably drop the front end of the subframe and do the two front ones, put it back together, then drop the rear end and do those, rather than do it side-to-side like in the instructions. That might save you a bit of trouble with the springs, as you might be able to leave them in;
-As for the bushings themselves, once I'd drilled through them (from both sides, they were right) I used a c-clamp and some bits of pipe to force the inner sleeve out, sort of the way you'd do it with bearing caps on a driveshaft. That sped things up a lot. Another idea that popped into my head too late was to grab a hole saw a little bigger than the inner sleeve and do it that way;
-The bushings themselves have a thin spot at the 12 and 6 o'clock positions, I cut through that with a hacksaw blade, then levered the bushing out in big chunks. If you're patient, it'll separate from the outer sleeve cleanly (mostly
)
-After that, a sanding roll is probably your best bet for getting the remaining chunks of rubber out. You gotta do this, otherwise getting the new ones in will be a serious pain in that arse, if it works at all. If they're clean, the new ones will slide in with finger power;
-The grease that comes with the bushings is pretty gross, Dow Corning #4 grease works well and isn't sticky. Its the same stuff that you'd get for putting on spark plugs, and its good for anything rubber (weatherseals, exhaust hangers, spring isolators, etc.)
That's pretty much it. Once the new bushings are in, shove the sleeves in from the inside and bolt it back up. You might have a bit of fun getting the bolts to line up, its good to have a buddy for that part. After that... put everything back together, and enjoy the ride! If your roads are in anything resembling decent shape, you'll never notice the difference in ride quality. Hope this all helps. Jim.
IRS Cobra subframe bolts 
Anyone know any more about this? My '03 makes a pretty loud clunk in the back when I roll into & out of the throttle. I'd written it off to slop between the diff, the halfshaft and the wheels, but what the hell? I'll take a look tonight and see if I can get some pictures. This *!@% is not on at all. 
-Jim. 
