fourwheeler or Peterson's had an article about "proper" measurement, and talked about ways that people "cheat" (or measure differently), to get larger numbers.
IIRC, you measure the distanc up the ramp by dropping a line from the center of the wheel to the ground, and measuring the distance forward that was travel (not the distance up the incline (which is 6% larger, or an extra 34 points for Jason's truck).
I've also heard of dropping a line from the center of where the tire rests on the ramp to the ground, and using that as the distance from the base of the ramp, which will be a hair larger than the above method, but still less than measuring the distance up the ramp itself.
It doesn't really matter, so long as when you're comparing numbers, you compare numbers measured the same way, or only look at the 100's digit or larger.
What I want to do is ramp it both with and without my dual shocks. I'm curious to see if the shocks twisting on the poly bushings (rotating in the plane of the mounting bolts, not rotating around the bolts) is limiting my front flex any.
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