I was wanting to buy a barring tool and timing kit. I found a cheap maintanence kit cummins part #3399869 that includes a barring tool among other various wrenches and things. I also found an injector adjustment kit part #3823610. It doesn't elaborate a whole lot on the specifics. It does include a dial indicator, would this be all I need for doing the timing? anybody bought any of these kits or know a better kit I could buy that would give me what I need?