18.5′ 40Lbs/178N Universal Gas Spring Shock Struts Lift Supports For Lid Stay Prop Replacement For Camper Shell Shocks, Canopy, Tool Box, Truck

How To Choose The Correct Gas Struts For The Job?

* Step 1. Measure The Length Of Your Lid Where You Will Mount Struts;

* Step 2. Weigh The Lid – Use A Pole And Bathroom Scale To Weigh At The Position You Will Mount Gas Struts, Usually At The Position 30%-50% From The Hinge;

* Step 3. What Force Gas Struts You Require If The Scale Read 40Lbs We Recommend You Choose The 40×2 (80Lbs) Strut Kit At Least! (We Recommend 2 Pcs Set 40 Lbs Lift Supports)

* Step 4. What Size Gas Struts You Require We Suggest The Length Of A Strut Equals About 1/2-2/3 Of The Lid Length.

How To Install The Gas Strut For The Job?

* If You Will Install Them On Your Truck Or Camper Shell, It Is Super Easy;

* If You Will Install Them On A New Build, Please Install As Per The Following Step:

* Mark A Point At 1/3 From The Hinge To The Opposite Side Of The Lid As The Upper Mounting Point; Open The Lid To The Height You Need, Fix The Upper Bracket Of Strut And Easily Get

The Lower Mounting Point As Image Left Shows.

* Pressure Could Be Adjusted As The Method Below:

* If You Feel It Is Is Too Weak, Move The Mount Point On The Lid Opposites To The Hinge Direction;

* If You Feel The Pressure Is Too Strong When Open/Close , Move The Mount Point On The Lid Closer To The Hinge Direction To Reduce The Pressure Played By The Struts.