Sorry should have introduced myself before posting. Have been following site for awile as a guest, thought it was about time to join. Tons of usefull info on here. Been a duramax owner since 03, (2004 GM 2500 cc/sb ran for 4 years 160000 miles), the 08 I have now 110000, do lots of towing, 29' enclosed triton with 5 sleds most of time 7-8 hours one way in winter and a 41' five slide fiver in summer. Also will be hauling a 70 chevelle ss around this summer in a 24' Neo enclosed to car shows.:thumb: