In OD or not?

[FULLSIZEChevydotcom]

I was just wondering if I should be driving in [OD] Overdrive or not in regular city traffic simce I have a suspension lift and running 35's now. It still has the stock gearing. Should I be in regular [D] Drive? Someone mentioned that to me recently, I was asked why I drove in OD, I've always driven in OD since I got my truck, is this hurting the transmission?

[Jpshostr]

You aren't hurting anything at all mechanically, maybe your mileage a little on the open road.  Since you are in city traffic I highly doubt you are ever going fast enough to even shift into OD.  About the only time I ever drive with the OD locked out is when I'm pulling the trailer loaded.  It stops the hunting on hills and gives a few more MPG.