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DuramaxPower 08-06-2005, 05:17 PM I have an 03.5 6 Speed with a steel drive shaft, a friend of mine has an 03 auto with an Aluminum drive shaft. My Dad has an 02.5 Auto with a Steeldrive shaft. Yes these are all Duramaxs but does any one know why this is? Thanks DuramaxPower 08-09-2005, 05:37 PM Any one know? moss022 08-09-2005, 06:18 PM the long wheel base vehicles need the aluminum. the short ones are with the metal. ext. cab. short bed metal, long bed aluminum Norskeole 08-09-2005, 08:52 PM I have a steel - 2 piece drive shaft - 2005 Chevy Silverado 3500 LT SRW; Crew Cab Long Box. Build date was May of 2005. 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. ABQFirefighter 08-10-2005, 06:20 PM I had a 2-piece steel shaft in my '01 2500HD, but I was having the infamous 'shuddering' when I started towing my 5th wheel. After an extensive search, I found that the dealer wanted about $700 for an OEM shaft. I found a guy off of Ebay that builds aluminum shafts. I gave him the part number off of my friends 2003 CC/SB and he built me an exact OEM Spicer referenced aluminum shaft delivered for about $250. Guess what, no more shuddering. :cool2: | ||