I've seen a new mast fitted by the pro's in under 30 seconds, start to finish!
From memory it's very simple.
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You need to unscrew the piece at the base of the mast.
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You do not even need to open the boot.
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Once that is unscrewed you remove the mast and the plastic nylon
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(?) track completely.
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With the stereo in the
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*on* position feed the new nylon track carefully into the aerial motor mechanism, but not quite all the way.
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Get a buddy to switch off the stereo
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(so to retract the aerial in) and at the same time push the nylon track that little bit further into the mechanism.
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This may take several attempts for the track to feed correctly and be taken into the winding mechanism.
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Once is does take it moves quite quickly and you really have to be on the ball with lining up the new mast to retract snugly into it's location.
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Watch your fingers though!!
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As I mentioned earlier I've not fitted one myself but have watched one being changed in jaw dropping speed to my rev 3 turbo!
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Hope this helps you matey
![Very Happy :D](./images/smilies/icon_biggrin.gif)