Ricardo,
I've been off RL for a couple years now & apologize for not seeing your question until now.
I initially put them on without rolling the rear fenders, but the 'L' shaped edge would cut into the sidewall of the rear tires. I did, later, and took a baseball bat (handle end) and walked it back and forth as a girlfriend was in the driver seat pulling it forward & back. Rolling the handle between the tire sidewall and the wheel lip forced it up and away from the sidewall. It would've been better to remove the sharp edge (bending it upward) prior to painting the car, as chips have developed over the years.
Otherwise, the size & backspacing (no spacers) cleared the rear suspension bits and was a really good fit.
Hope this helps!