At certain speeds you'll feel or hear a vibration, without even having to put your hand on the shifter.Mike In the past 30 days, my drive shaft has been shortened (don't know if a balance was done) due to a 4 - 5 speed conversion and I've switched differentials.The 5speed conversion was professionally done and my neighbor and I did the diff swap. If something is out of alignment, how can I tell?.n the past 30 days, my drive shaft has been shortened (don't know if a balance was done) due to a 4 - 5 speed conversion and I've switched differentials. The 5speed conversion was professionally done and my neighbor and I did the diff swap.
Island arcs. An island arc is a curving series of volcanic islands that are created through the collision of tectonic plates in an ocean setting. The particular type plate boundary that yields island arcs is called a subduction zone . In a subduction zone, one lithospheric (crustal) plate is forced downward under an upper plate.
A new volcanic arc forms at the site of the easternmost transform, and many complications develop in SE Asia (Philippines, etc.) because of transforms turning into arcs, and various subduction-flips as thick (plateau-type) ocean crust refuses to subduct. A new subduction zone develops north of Australia.