The lower air dam can take quite a bit of abuse.

 

Its not bad...just plan your route accordingly and know all the trouble spots

 

Im at 24 7/8'' in the front. Speed bumps are not an option. If you know your roads and plan you will be fine. Its usually only the exhaust that rubs so i dont worry about.

 

I drive real slow over speed bumps....will not allow hippos in my car (only me and my 3 year old son ride the Z. The same goes for Alpacas...angle out of the driveway as to not drag the front. I still drag the dam alot. *some LT's just have poor clearance / poor design. I myself had to get used to a different style of driving coming from previously having a grand cherokee which seen alot of time climbing mountains out here in Nevada.

 

I hit the angle hard... or have no passengers..