How does the wheel move directy up and down are the drive shafts telescoping?

 

The TTI prevents the rear wheel from butterflying side to side as it moves up and down. It will still butterfly on the same plane as the forward (or backward) motion, but it doesn't negatively affect the suspention since the wheels turn with the motion rather than against. It increases latteral stability greatly. The arms do not telescope.

 

but if the drive shafts don't telescope then when u hit a bump or put weight on the back rack the drive shaft would push the tire out right?

 

I haven't removed a CV boot, but it looks like the axle is set up to slide in at the closest point (strait on). I just went out and pushed down on the back of mine.