Aslong as they give you the right bits back, and not some old random shit from a fiesta box lol. They might have not replaced everything they said. Well i dont really like stripping down and rebuilding gearboxs at all. These boxes aren't particularly hard, theres alot worse, i just wasn't being careful when removing 5th gear assembly. After that i couldn't really be fucked with it, so its sat in a cupboard in work lol. I'll use it for spares, i bought a new box instead.