Who makes a good scanner for 2nd gen trucks? I wont to be able to check things like vp44 rpm. Check things while driving down the road. Mainly what ever feed back I can get from the vp.
Thanks 

My favorite is OBDLink MX it covers all vehicles. It only provides the standard OBDII info. Some of the data can be matched out to find like HP or TQ. As for internal like VP44 timing, and such you can get off your Quadzilla.

 

Now my layout is designed around mates. Intake and fuel temp are typically matching as a mate. Coolant and engine oil (trans temp) are close mates being my oil typically 30 degrees cooler. Then engine load and pyro are working hand in hand. Timing and ECO are mate's being timing impact ECO fairly directly. 

 O have a harbor freight obd2 scanner that I use fir many vehicles. It does have live data to see things in real time and reads codes. It isn't as informative as @Mopar1973Man's set up with the adrenaline but it has served me well 

 It's supposed to also link to abs but so far i have never had it link successfully to abs.

I bought an OBDLink LX a few years back and it's fantastic, I leave it in the truck since I tend to drive the truck to more remote and far from home locations. I bought an OBDLink MX+ last year to look at newer vehicles. I keep it at the house.

 

 

They're both great. Connect easily and reliably. There's a (very short) learning curve, so use it before you actually NEED it.