Several weeks ago I replaced the track control arms on my car (A Fiesta based Quantum kit car). It was a bit of a fiddly job, and part way through I noticed oil was pouring out of the gearbox - One of the driveshafts had fallen out! I completed the job, replacing the driveshaft. You've probably guessed the next instalment...... when I added new gearbox oil, it also leaked out. I thought I might not 'get away with it'.
Today, with the forecast of dry weather, I decided to sort it. I removed the brake caliper and disc, disconnected the steering track rod end and removed the driveshaft complete with hub. All good so far, the old oil seal was a struggle to remove, the new one was put on place and the driveshaft reconnected. Parts were put back, and it was then I thought I may as well put on the new brake discs and pads. I bought these about 6 years ago from Mr Auto, and went for the Ferodo parts. Before I fitted the disc I ensured the diameter and bolt holes were correct (should have done that when I received them of course). On it went, and the pads were put in the caliper and the caliper was bolted on. Hmm - it wouldn't turn! What have I done wrong? It turned out I'd done nothing wrong, but the disc was scraping on the caliper! Careful examination and measurement confirmed the offset of the disc was 2mm different to the old disc I'd removed. Fortunately, as the fixing bolts were long enough, I put a 2mm washer on both of the bolts, between the hub and the caliper, and all was ok. Not a problem I'd anticipated, or ever encountered before.