QU10991 Mode Hub for Dodge NV271D, NV271F, NV273D Transfer Cases

QU10991 Mode Hub for NV271 and NV273 Transfer Cases is a genuine original equipment Mode Hub for all 2003-up Dodge Ram 2500 to Ram 5500 4x4s with New Process NV271D manual shift or NV273D electric shift transfer cases plus all 1999-2010 Ford NV271F manual shift transfer cases. Also fits NV273 transfer cases in 2005-2009 Chevy and GMC trucks. USA Made.

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
Mode and Range
Matching Parts
Early NV273D
New Venture/New Process/Magna
Applications

Tech Note 1: Mode and Range
Mode and Range are the two types of gearing selection available in New Process/New Venture NV271 and NV273 2 Speed Transfer Cases. Mode Components are used to select 4x2 or 4x4 operation. In 4x4 Mode, a sliding collar engages the drive sprocket carrier which transmits power through the sprockets and chain to the front output shaft. Range components allow you to select High Range, Neutral or Low Range. Low Range gearing is accomplished using a planetary gear set. In High Range the Input Shaft and Rear Output Shaft are direct coupled.

Tech Note 2: Matching Parts
Matching Parts for QU10991 Mode Hub are:
QU10992 Sliding Mode Clutch Ring
QU11002 Mode Fork
QU10164 Mode Fork Tip Shift Pads (uses 2)
QU10670 Mode Fork Center Shift Pad
QU10975 Snap Ring, Mode Hub to Mainshaft

Tech Note 3: Early NV273D
Early NV273D Electric Shift Transfer Cases had a Mode Hub that differs visually from QU10991, however QU10991 is the correct replacement part for those early Transfer Cases.

Tech Note 4: New Venture/New Process/Magna
When Ford (1999 models) and Dodge (2003 models) first used NV271 and NV273 transfer cases, New Process Gear (NPG) of East Syracuse N.Y. was part of New Venture Gear (NVG). When NVG dissolved, NPG continued on under Chrysler. Chrysler subsequently sold the production rights to Magna, a Canadian automotive parts company. All these name changes are confusing, but the important thing to know is a specific assembly number for any 271F, 271D, 273D, and 273F transfer case is the same and uses the same replacement parts regardless of it was built by New Venture, New Process, or Magna.

Applications

Chevy and GMC:
2005, 2006, 2007, 2008, 2009 C4500/C5500 Chevy Kodiak and GMC Top Kick 4x4 medium duty trucks NV273

Dodge:
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Ram 2500 and Ram 3500 NV271D
2008, 2009, 2010, 2011, 2012 Ram 4500 and Ram 5500 NV271D
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Ram 2500 and Ram 3500 NV273D
2008, 2009, 2010, 2011, 2012 Ram 4500 and Ram 5500 NV273D

Ford:
2004, 2005, 2006, 2007, 2008, 2009, 2010 Super Duty F250, F350, F450, F550 NV271F
Super Duty F250, F350, F450, F550 NV273F