Modifying the roof molding:
Assuming your Venue came without rails, you have the 2 black aluminum molding strips that go across the roof channel. These are held on by plastic clips and pop off easily.
The Venues that come with rail pre-installed have similar strips, but they don't go the whole way to the front of the roof and they also have hole where the bolts can fit through.
According to the online parts catalogs I could find, some of the clips were shared between the models with and without rails, and some clips weren't. If your Venue did not come with rails you have the following clips holding the roof molding on:
- 87246K2000, 87236K2000 These are the two closest to the front of the car - b in the diagram below (I forget which one is left and which is right).
- 87235K2000 These clips hold the rest of the molding on - c in the diagram below (6 on each side).
Don't worry about the end caps at all: The front end caps (a) aren't used with the rails, and the rear end caps (d) are the same on both versions.
Here's is what the parts catalog says for vehicles that came with roof rails from the factory:
- 87246K2010, 87236K2010 Again, left and right clips that go at the front of the molding on each side.
- 87235K2000 Same clips as above (5 on each side).
They make it kind of confusing because part c in the first diagram is the same as part b in the second diagram. But the bottom line is that if you have a Venue w/o rails, you have 12 of these clips, and the diagram with the rails calls for 10 of them. So you should already have what you need.
Now why am I going into so much detail about the difference in clips between the two? Well I decided to buy the two front clips that I didn't have (b in the second diagram, part numbers 87246K2000, 87236K2000) because that's what the parts guide says. What I eventually found out is that the first "c" clip in the first diagram is really in the same position as the "b" clip in the second diagram. And when I got the clips I noticed that they were VERY similar to the ones I already had. Aside from the little tabs in the center (and the color), they're basically the same. And I don't really think the tabs do anything to be honest. So long story long, you can probably get away with reusing the 12 87235K2000 clips you already have, and you don't have to buy any new ones.
The molding strips:
If you want to make it easy on yourself, you can buy the molding strips made to be used with rails (part numbers 87240K2000 and 87230K2000), but I wanted to try to see if I could modify the ones I already had. If you go this route, you will have to cut 3 rectangular holes in each where the bottom of the rails fit through. And you will also have to cut off a few inches from the front of the molding because remember - this one has to be shorter because it doesn't go all the way to the windshield. I would recommend using some sort of Dremel tool for this. I tried using metal shears at first, but the ended up deforming the aluminum too much. This is an instance where you want to be cautious with your cuts and do it a little at a time, because if you take off too much then you'll have visible gaps and it will just look bad.
Here's my roof molding with the front part trimmed off and the holes for the 3 brackets:
Speaking of gaps, this is the part where I had to come up with a sort of inventive hack. After I had the moldings and the rails all attached to the car and I thought I was done, I noticed that there was a bit of a gap between the roof and the front part of the rail assembly. Comparing it to the photo I took at the dealership, I could see that there was a small strip of rubber that I was missing.
I don't really know for sure where this comes from. It's not listed as a separate part number, so it either has to be part of the moldings made for roof rails, or it's a piece that's supposed to come with the rails themselves and the eBay seller I bought from didn't include it. In any case, I tried a few different shapes of weather stripping from Home Depot to fill the gap, but I couldn't really find anything that could fit the odd shape I needed. I finally settled on cutting off a piece of rubber from a squeegee blade replacement, and gluing it to the bottom of the rail. I didn't like doing a hack like this, but in the end it didn't turn out too bad: