On most rear-wheel drive vehicles, a flex disc, sometimes called a giubo (which, you may be interested to know, is properly pronounced JOO-boh), is fitted where the gearbox and propshaft flanges meet. Flex discs are designed to help smooth out the transfer of torque between the gearbox and the rear wheels. You can see it in place on my E39 below, with the gearbox crossmember removed, which you need out of the way in order to access the flex disc.
The photo below shows the old flex disc from my car on the left, and the new one on the right. Now, if you’ve been following this blog for any length of time, you will know that I replaced this last March. So why am I doing it again now, and more importantly, why is the old one so distressed already? Continue reading “Flex disc woes”