I have a FT 3in lift on my 2 dr jk with 37s...

My front shaft has the ripped boot..

The rear looks fine but I know it prob won't last forever..

It feels like maybe one is causing a little vibration..


Which one usually vibrates???

 

Likelly your front driveshaft with the torn boot is vibrating. It is now slightly out of balance.

 

Unhook the front shaft, drive around the block and see if the vibes are still there...

 

I have a 2.5" with 35's and after 5 years my rear drive shaft bit the dust. Replaced it with a teraflex shaft now i feel like its slower? Can this happen or am i imagining it?

And i would replace the rear if u have the $$$. It will eventually break.

 

I think I'll try this....thanks!