Has anyone dis-assembled a pwr-str rack from an RA60 celica? Mine is leaking on the LHS, I've bought a seal for it, there's a big funny shaped inverted nut in the LH end of the rack, the seal fits into the nut on the inside, the nut looks like it needs a special service tool to undo it, just curious to know if anyone has come across this before and if the nut could be LH thread? Any info would be great, thanks.