Mark stops by to talk about the latest OBS Builders Guide he just finished!    OBS Talk is brought to you by these OBSponsors -  Title Sponsor - www.lmctruck.com - When you need OBS Parts, think LMC Truck.  www.us-mags.com - Rad wheels for Rad Trucks.  www.dakotadigital.com - Yep  - they make gauges for our trucks.   www.azproperformance.com - Have you heard about their new REACT OBS spindle? Yep!  www.psiconversion.com - wire it up and fire it up!  www.lgbilletusa.com - billet is back!