If your company has some big accounts, you might look after 100 to 150 trucks, in house. The place I'm at has 100 trucks, running 24/7 with 300 hours driven a month. I do all SM's and load tests, and rebuilds. Get help only sometimes. But I'm in house, there 8 hrs every day. On the road, you would lose so much time traveling, finding trucks, and hauling tools around. I can work much faster than a road tech as the tools and air supply, hoists are all set up. If you're a road tech with pay as you go customers, it's a breeze. If you have a fixed maintenance contract, then the headaches start! Many contracts pay only.7 to do maint. Finding a manager to sign the work order, bringing in tolls, finding the truck leaves you with about 10 mins to do the truck. All the big boys like Wal-Mart, Target, Home depot are fixed maint contracts. So tough now that we have to supply all avoidable repairs under $1000 !!! Hit a wall and do $700 damage, WE pay. It comes out of our monthly FIXED amount we get from the customer. Thank God we're payed 40 hrs regardless. But if you cant keep up in repairs and you go over budget, you're out on the road scrounging for work. Get used to these contracts, one is coming to a neighborhood near you!