I did this upgrade with the help of forum members here! its not difficult at all just buy the parts from Dan @ duckworths and ask him to send you the 2 specific bolts that fit into the bracket.

here's how I installed.

1) remove the old tailgate cable (right side), replace with new cable with metal nipple (which clips into the gas strut, make sure the nipple is the bolt that screws into the top side)
2) click the top of the gas strut (short end) to the metal nipple
3) click the lower end of the gas strut to the metal bracket
4) line up the bracket on the right upper side of the lower tailgate metal. If you see my photos I found that the best fit was a little higher up. (move the bracket around till it sits properly)
5) get a sharpie permanent markers and mark the centre of the 2 holes in the aligned bracket (1 of top and one on right side)
6) remove the bracket from the lower gas strut (to give room to drill)
7) centre punch the 2 black pen marks you made
8 ) drill a 2mm drill bit pilot hole in each (the hole on the right side will require you to lift the tailgate at 45 degress and then drill so you have the necessary access, you can put a soft towel on the bumper to avoid and metal bits damaging the paint)
9) drill a 5.5mm pilot hole after that (to expand the hole)
10) add a bit of primer or paint to both holes (let it dry)
11) clip the bracket back on to the lower gas strut
12) using the 2 x m6 land rover bolts Dan @ duckworths supplied start tightening them down (they are a perfect fit)
13) close the tailgate and test, the tailgate will drop fairly quickly from 90 degrees to 55 and then the strut dampens it to about 10 degrees where it falls a bit quicker.
14) I added a bit of wd40 to all the strut moving parts

Hope this helps!

YOUTUBE VIDEO:

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Excellent how to Wiki?

Received the bits from Dan this morning.

All done, very straight forward.

just to let anyone know who's interested in ordering a kit, the brackets are currently back ordered at the factory there is no ETA date available as of yet. You can paypal direct using - www.paypal.me/duckworthparts
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My Direct Line: 01673 849873
Email: robin.hall@duckworth.co.uk
Supplier of Genuine Land Rover & Jaguar Parts For All Models

Just did mine this afternoon,

Drilled 3.5 then 5mm, then tapped 6mm to suit Dan the man's supplied bolts!


All fitted in under 10 minutes and working a treat!!!!!

Highly recommended Current vehicles
4.2 SC FFRR RSE 2010- facelift
Range Rover Evogue Dynamic Lux

Gone
Rejected RRS my14.5 nightmare
Disco B4 XXV convert
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54 FFRR 2005 model V8 4.4 Cobra Variant
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Thanks for write up and pics, very useful. Mine is fitted and works perfectly.  
Had it, loved it!
2007 Vogue SE TDV8
Stornoway Grey / Ivory
Climatic Seats, RSE, AFS, Deployable steps, iPod kit.

All done, thanks for the "How To". Made the drilling much less stressful!
 Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

can you guys check my video out, i fitted the damper kit but it appears to have made no difference and the tailgate still drops and slams down, doesnt really slow the drop



Matt

Looks like it's fitted OK. Maybe the damper's faulty? Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

quite possibly, give me a ring Matt You can paypal direct using - www.paypal.me/duckworthparts
Please supply your full name address when sending a paypal payment.
https://www.facebook.com/duckworthparts
www.duckworthparts.co.uk
My Direct Line: 01673 849873
Email: robin.hall@duckworth.co.uk
Supplier of Genuine Land Rover & Jaguar Parts For All Models

excellent service from duckworths as usual! Dan's sending me out a replacement to try

Matt

Matt,

Have you tried the shocker upside down? Mine is as it works better that way on mine!


Craig

You probably don't want to here this but I looks to me you have mounted the bracket too far from the car body , To work properly the bracket needs to be as low as possible on the tail gate. 2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

Happy to report successful fitting of kit following advice and guidance on this thread. Used the two M6 bolts supplied by Dan to fix the mounting plate. Not really enough depth of metal to get a good thread going having tapped out the holes with an M6 x 1.0 so didn't do these up too tight. Will have to see how they hold, but one sunny day may have the carpet up and fit nuts on the back. I also get the damping effect and then the final gentle "drop".

Found that by wiggling the mounting plate back and forth it finds it's correct location.

Also fitted the recessed tailgate rubber cover. Much better.

Yes, support strap was quite rusty and wet, so worth replacing the other side in time. .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

I fitted mine yesterday as above, i quickly found that the bolts weren't that secure. Put nuts on the back, that wasn't a two minute job However all in all a good mod with a dampened tail