Ditch Finisher Mod For None OE Roof Rails - How To
If you’re interested in fitting after market or non OEM roof rails to your D5 and don’t want the extra expense of removing your current trims, ( often referred to as ditch finishers ), throwing away your original trims and replacing them with rather pricey replacements, this is the thread for you.
Rear Trims
The good news is, once you remove your rear trims which just pop off, the area you need to cut out can be clearly seen on the underside.
You’ll notice, the rear trims are made from plastic and cut + drill easily.
Get yourself one of these cutters in 35mm. And position it inside the cutout area and drill 2 large holes.
Once you’ve drilled both ends of the cutout, remove the central piece with a saw blade and tidy up with a file. There’s two cutouts in the rear trim so repeat for the opposite side and you’ve got both panels ready to go.
Front Trims
For these ditch trims, there is no target showing where the cutout should go so you’ll need to remove the front trim and mark it out yourself. Don’t worry, it’s super simple to do and will save you a fortune.
I placed my trim adjacent to the ditch and, using the rear trims as a cutout size guide, you need to mark this cut out to cover the attachment bolt zone. You don’t have to be super accurate with the marking out as there’s plenty of tolerance so as long as you remove material above the two attachment screws to reveal where they are, that will suffice. The foot on the roof rails is considerably larger and will cover a multitude of mishaps so again, you don’t need to be super accurate.
You can see here how I decided where to cut.
To do these cut outs, I did exactly the same as the rears, cut two big holes at either end, ( I used a slightly smaller cutter for the ditch finishers 30mm ) then remove the centre with a saw blade + tidy up with a file. You’ll notice, the front ditch finishers are made from alloy, not plastic as per the rears but take your time and remember, all will be covered and the cut out area gives you plenty of tolerance.
Once you’ve completed the cut outs ( 2 in each rear panel and 1 in each ditch finisher ) you can successfully install your roof rails as per instructions, happy in the knowledge that you’ve just saved yourself a small fortune by not buying the replacements and you’ve retained your colour coded front ditch finishers.
It's also nerve wracking, as the clips holding the plastic trim almost certainly will break no matter how careful you (I) were. It's immaterial though as you'll be bolting them back down with the bars
Replacement clips and panel pins are easily found online and can be bought in smart looking variety boxes for the spares shelf in the garage or loose in packets of a dozen or so from eBay, Etsy or Temu for pennies. I have a few boxes of a variety of metal and plastic trim panel pins and clips commonly used on the Discovery (and other cars)...since it's guaranteed at least a couple of them will break when you're taking the interior trim panels or things like the ditch finishers off.
Especially those 2 part Xmas tree fasteners. They're a proper pain for breaking off if you don't have a set of panel pin tools.
Sadly the trim clips used on the forward roof rail trims ( ditch finishers ) are very odd. They are spider like with a couple “legs” at either end. I’ve not seen them used anywhere else on the car, in fact, I think they’re specific to the job in hand.
As Penuwchian pointed out, once the rails are on, they should hold the ditch finishers down so the clips are no longer essential.
Not sure that’s necessarily enough. Unless the replaced ditch filler and trim follow the roof contour faithfully.
Both sides on mine (existing trim) have a dollop of “mastic” on the front edge, which stops the front edge lifting out of the clip 6” in from the front. Wonderful JLR.
You cannot create new threads in this forum You cannot reply to threads in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum