Anyone know where to get 1 in extended bump stops? I am going for the bushwacker flat fenders, extended bumpstops, and 35's. no lift. on my new 2011 2 door rubicon.

 

They prevent your coil springs from compressing too much.
They are standard on all JK's.

 

The front bumpstops go inside the coils; so if you are putting new coils on, it is a good idea to add the bumpstops in at the same time. Saves a lot of labor that way.

The rear bump stops are outside the coil and can be added anytime

They prevent over compression of the springs

 

They also prevent your tire from contacting the body and fenders.

For just 1", hockey pucks are perfect. One of our members did a nice writeup...search on "hockey puck bumpstops".