Hi, having after some time, repaired the previously mentioned fault, about two months ago, I was surprised to find that the bolts have worked themselves loose, again!!! defying the bolt 'locking tabs' that are newly replaced!, which means taking the whole damned lot off again and re-tightening the lower swivel pin, after presumably working the bolts back in to the casing? Could it be that because I relied on the 'o' ring stopping oil leaking out, and not applying some sort of sealant between the pin and casing, the oil leaking has lubricated the bolts, and made the nuts loose, or because I have a TDZ power steering thing assisting the otherwise heavy steering, causing undue strain on the swivel pin? any advise asap would be useful, as I have the whole lot off on my drive, which I share with other people at my house! Oh, the beauty is a 109 series 11a 1967. Ta.