my xu6 sorta "jolts" when im going 70

[lockmac]

Hi guys. Just wandering if anyone could help me...

I have an XU6 and when i slam my foot down, when it reaches about 70km/h (i back off at 100 i spose), it sorta starts jolting. its sorta hard to explain... like it sorta pulls and then stops for a very split scond and then pulls again.

its not a huge problem but i am just wandering what it could be?

also the back of my car when im going slow makes a sound (almost as if the exhaust is dragging slightly but its not) and im sure its not the brakes or anything..

could it be the diff?

any help appreciated guys.

[don0xer]

give a bit more detail with your stuttering ect. what gear its in, what rpm, WOT or cruising throttle?

had a major/minor service recently? km's?

as for the sound at the back, is it a sound that goes 'shh shh shh' in relation to speed? clunk? click? only happens while turning? slowing down?