Leveling kit

Can anyone comment on if the Rancho leveling kit modifying the drive characteristics significantly? Or is it simply cosmetic?

 

http://www.tacomaworld.com/forum/showthread.php?t=142677

 

I just installed a spacer kit and the ride changed, the truck is way stifer now. Everywere says that you keep the factory ride but it is not true. Even that the ride is stiffer you can't beat the look.

 

I just got the rear leaf tsb and did 5100's set at 1.75 a couple months ago and the ride is barely any different from stock. Maybe a touch stiffer and less body roll. I actually like the ride better as many on here will tell you. I highly recommend the 5100's unless you want to go higher.