The gasket that runs down in front of the door was always part of the door rubber, if you are not replacing the rubbers with originals, it is best just to make your own as you suggested. I think Better Auto Rubber's door rubber has this gasket on them (check before buying), Rare's don't. The other rubber is available at Clark Rubber, they have a wide selection of channels in stock, it's just a matter of cutting "V"s to suit the bends at the bottom. Don't buy something too thick, the guard will sit too high on the inner, take a sample with you to compare.
John
I have tried my best to keep the originals intact on my ute but then I’m not going for a complete rebuild and they are actually in fair condition. I would be chasing up the better rubber ones if available. If you’re replacing these then no doubt the door seals will need doing as well.
Cheers
Clay
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getting my FB ute on the road
EK van on rotisserie
Inner tube (bicycle OK, but car better), and mastic sealant. For the one at the front of the guard, you'll probably have to glue it onto the subframe first.
Hey John;
Have a look at page 22 of my build for the subchassis to guard rubber, I did exactly as Hamlet said I went to clark rubber with a sample and then just cut V's where the holes are and the corners works pretty well.
Neil
Member of WA FB/EK Car Club
Frankenstein EK V6 Ute
The Reverend FB Station Wagon Project
1950's Commer Light Truck (2.5 Ton)