Mission To identify with working truckers who take pride in their truck and their occupation so we will be the first company you think of when it comes to customizing your truck. Company Overview 4 State Trucks is a family owned & operated heavy duty truck parts and accessory dealer in Joplin, Missouri. We have over 30 years experience in providing you with the parts and service you need at prices you can afford. Chrome Shop Mafia was introduced in 2003 as a truckers' club for our customers. CSM is famous for their cutting edge customization & fabrication when it comes to big rig trucks. We set the trend for excitement in the trucking industry. General Information Store Hours (Central Time): Monday - Friday 7:30am-6:00pm Saturday 9:00am-5pm (New Parts only)