In order to prevent lowering of the rear axle support beyond the specified dimension, the originally installed screws of the rear axle support must be replaced by repair screws M12x1.5x115 (part number: 07 14 7 426 660). 'The rear axle support must be lowered to disassemble and install the rear axle differential. How'd you remove the bushings? I heard BMW have a diff bushing removal tool, just haven't found it that says it fits the F80. Where do you get the extended subframe repair bolts? I assume they significantly longer(hence the name) so you can lower the frame with it still connected to the car? I couldnt get to it using the extended repair subframe bolts because the fuel tank is in the way.

Its strange that the TIS repair instructions dont mention anything about that driverside front diff bolt. My biggest goals were to replace it without removing the rear axles or driveshaft from the diff. Just make sure you give slack to the brake lines, ebrake cable, subframe ground cable, etc. You can go with the PF black series if you want stiffer. Similar or slightly better to how the car feels new. I actually didnt have any common symptoms associated with a bad rear diff bushing. If you go with OEM, i think its possible to press it into the subframe using a threaded rod If you move around the diff a little bit for room. I went with purple powerflex in the front and rear because it was easier to install. Great job hc1001, I will be doing the same soon, thanks!! What brand bushings did you put back in, did they make a difference?

E46 m3 differential bushings