We are doing some front end work on one of our trucks at work. Is a 99 2500 CTD, auto qc lb. When we were taking the wheels off, I noticed the passenger side had a thin spacer on it, but not the drivers side. Do these trucks come with pacers from the factory? It's only like a 1/8 in. spacer. We're putting it back together on monday, and I'm wondering if we'll need these. Thanks.