I came across these bolt on sliders http://www.rocky-road.com/tacomarockrail.html and I really like the look and tight-to-body fit, BUT upon further review it turns out that a significant part of their strength is accomplished by mounting the sliders to the rocker panel pinch weld! Now I'm not concerned with the strength of this mount but rather that it 'mounts' the body to the frame.
Essentially this would create a ridgid mount between the frame and the body (the bodies use rubber mounts to the frame as is). Under max articulation the body flexes somewhat independantly to the frame, hence the rubber mounts. The rubber mounts also help to diminish vibration from the chassis to the body.
... So why this design? It seems like nobody would put out a product that could be this bad for a truck but..... Is there no flex between body and frame under the rocker panels? Will this tranfer more vibration to the cab?
This design seems so flawed I almost thing it has to be good, or a huge oversight. Plus, they might even be too tight to the body to use a highlift..?
I searched the web and didn't find the info I was loking for, mostly speculations similar to mine.
What are your thoughts? Have any experience with these?