The only part required is a replacement gasket.
F150 3rd brake light leak fix.
Start by removing the two screws holding the brake light to the cab.
Fixing an f 150 third brake light leak replacement gasket.
Does your back window leak in your f150.
After trying 2 new 3rd brake lights i determined it was the seal on the window that was leaking.
Examine the foam rubber gasket where you saw bubbles and you may see why it was leaking.
I bought this peel and stick variety and it worked.
The fix is simple and will only take about 20 minutes.
4th gen ram trucks diy 3rd brake light leak fix duration.
3rd brake light water leak fix.
Once you do this.
Lift the housing away and twist the light sockets out of the brake light housing.