Today I installed DeeZee Tailgate Assist on both of my trucks, this mod has been on my to-do list for a long time and I am very pleased with the end result. As sold the F-150 version (part# DZ43203) of the Tailgate Assist does not work on the Lightning/HD without modification, however a clean and simple install has been devised through the efforts of other members. This thread isn't intended to be a "how to," I just want to clearly present the best way to retro-fit this mod for compatibility with the Lightning/HD.
For this install you need the complete Ford F-150 kit and a Dodge hardware kit:
- DeeZee Ford F-150 Tailgate Assist kit - part# DZ43203
- DeeZee Dodge hardware kit - part# BKT43300 (Order this kit directly from DeeZee, cost is $9.00)
The install consist of four components taken from the two kits. From the Ford kit you will use the shock, the lower shock mount, and the lower shock mount nut-sert. All that is used from the Dodge hardware kit is the upper shock mount.
Comparison of the hardware from the Ford and Dodge kits:
Dee Zee C - Labeled.jpg
Dodge upper shock mount (washer and mount):
Dee Zee F.jpg
As you can see in the picture above the stud of the Ford lower shock mount is quite a bit beefier than the stud for Dodge lower shock mount. I know of one member using the Dodge lower shock mount concerned it will eventually shear off. He also identified that use of the Dodge lower shock mount caused the shock to rub the tailgate, putting additional tension on the shock. In order to clearance the shock he added a shim which effectively served the same purpose of the large hex head of the Ford lower shock mount. For these reasons (clearance and added strength of the larger stud) I opted to use the Ford lower shock mount hardware.
The lower shock mount nut-sert is installed on a brace spot-welded to the lower, left corner of the tailgate. Most members locate the nut-sert between the two spot-welds. In hopes of achieving a stronger shock action and slower opening tailgate I followed the recommendation of others at located the nut-sert 1/2" higher. I do not know if this actually achieved a slower opening tailgate but I am content with the result.
Dee Zee G.jpg
To drill the hold for the nut-sert I started with a 1/8" pilot hole and increased bit size up to 3/8". Although a 1/2" bit probably would have been quicker I opted to use a rasp to file the hole large enough to tap the nut-sert into place with a hammer. I tightened the nut-sert down as shown in the installation directions but I snugged it down more than the recommended nine turns.
To make sure the cable cleared the shock I flatted the curve of the cable end with a hammer and flat surface.
End result:
Dee Zee D.jpg
Dee Zee E.jpg