I've got these lift bars off of a USMC truck that I parted out, on my current Deuce which is Ex-USAF, US ARMY, & CALIFORNIA NG. The truck is under coated but it was never a USMC vehicle....go figure.
It will be USMC when I'm done with it!
I run my truck in some extreme rough terrain from time to time, and have never had no problem with those bars twisting either themselves or my bed. Of course, I'm running 395s which hit the bottom of the bed probably before the spring pack can articulate fully.
On slightly different note: THANKS to whomever posted up those 2/12 USMC Deuce pictures, Those brought back some memories. I was in D Btry, 2nd BN, 12th Mar Regiment (105mm Howitzer Btry) in 1975 when I was in Okinawa, our trucks were marked EXACTLY like the one in the picture. I couldn't make out the Btry unit marking on the door but the door stencil would have been:
The Third Marine Division emblem in the center (sometimes if we were bored we would paint in black "shadows" on the bottom sides of the yellow "star"). At the 9 O'Clock position, just outside of the emblem, would be the Battalion number, in this case a 2 for the 2nd Bn. At the 3 O'Clock position would be the Regiment number in this case a 12 for the 12 Mar Regiment. Then dead on top would have been the unit designation in my case a D for Delta Btry.
I can't make out the marking on the truck in the picture it might be a F, but probably not as if I remember correctly F Btry was a 155MM Towed unit, and they would have had 5-Tons.
Anyway that's a cool picture, it brought back a lot of memories most good, some lets just say "memorable."