Can anyone tell me what stock guages come on the Dmax set up from factory and what additional guages would be useful for towing a fiver of about 7200 lbs. loaded weight? Looking to replace current 2500LD gasser with a 2500HD Dmax in 2006.
Thanks in advance.

Tach, speedo, fuel, voltmeter, oil pressure, water temp, and trans temp with the Allison are standard.

I'd add EGT.

Yeah, mainly just need to add EGT. You could also add a rear differential temp gauge too, but not needed.

If you want to go gauge crazy, you could add a boost gauge too.

However, if you are not going to add any power adders, you really dont need any additional gauges. IMHO.

I added a pyro and boost. Exhaust gasses can get pretty hot when pulling a 5th wheel wheel and medium to steep grades.

2005 Chevy Silverado 3500 LT SRW; Crew Cab Long Box ; Duramax (LLY)/Allison; Luverne stainless steel running boards; Isspro gauges; Super Duty Air Lift air bags; Bed Rug bed liner.

Towing a 2004 Everest 291L 5th wheel