[1950Mercury]

The rubber dust shield over the upper control arm does it go on the engine side or the tire side of inner fender on 66 GTO?

[1950Mercury]

I also meant to ask are folks fighting spaples or using screws?

[rockdoc]

My fenderwell seals ('67) are on the tire side, under the fender, and I attached mine with the provided staples. It was a pain in the neck to get them on, but it's worth the effort. I used the original holes in the fender to locate the new holes in the liners. The "staples" were so stiff that I had to hold a large piece of steel (piece of railroad track in my case) underneath and use a small hammer to fasten the staples.

[TXSTARFIRE]

They must have had a super duty stapler to do this at the factory.

[Andre]

Use wire, then cut and bend backwards to look like staples. Stainless wire wont rust either

[1950Mercury]

Another quick question. Which end goes to rear? I am assuming the end that has the narrow tear drop looking end. Is it only stapled across the top?

[Jeff Hamlin]

Orientation of shield as shown.

I use SS wire, cut it into approx. 1.5-2" pcs. bent in the middle to match the existing hole width at about center leaving the legs long until after installed.

Using a small drill bit to go through the rubber reusing the factory holes.

Then you can slip the wires through and then trim/cut each leg and fold over.

Mine have held well for years.
PITA but very doable.

[OG68]

Hold the rubber to the fender with C-Clamps. Then drill through the existing fender holes and through the rubber from the engine side.
I used a body dolly as a backing when fastening the staples.