The shock itself is not 3 inches longer... It just makes the back sit higher... Think about it, a stock Blaster shock has like 3 inches of travel, right? But the rear end will travel about 7.1 inches, from the lowest point to the highest point. So the fact that it sits up 3 inches higher doesn't mean the shock itself is 3 inches longer. It's actually only about 1.5 inches longer.