QU50725 Flanged Pinion Nut for GM 14 Bolt Rear Axles

QU50725 Flanged Pinion Nut for GM 14 Bolt Rear Axles is a genuine AAM original equipment, heavy-duty one piece part that combines a locking nut with an integral flange to fit 1973 to current AAM/GM 14 Bolt 10.5" Ring Gear Full Floating Rear Axles in Chevy and GMC 3/4 ton and 1 ton vehicles. QU50725 replaces QU30093.

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Dan the Gear Man® Tech Notes:
Pinion Washer
One-Time Use
Matching Parts
Corporate/AAM
Applications

Tech Note 1: Pinion Washer
Use with QU50743 Pinion Washer if nut bottoms out against spindle stem.

Tech Note 2: One-Time Use
Pinion Nuts are considered a one-time use part, you should replace your pinion nut if it is removed for any reason.

Tech Note 3: Matching Parts
Matching Parts for QU50725 Pinion Nut:
QU40814 U-Joint Strap and Bolt Kit for 1350 Series U-Joint
QU50510 1350 Series Pinion Yoke for 1973-1997.5
QU50614 Crush Sleeve for 1973-1987
QU50555 Crush Sleeve for 1988-1997
QU30115 Premium Original Equipment Pinion Seal
QU50572 Replacement Pinion Seal
QK8006 Pinion Seal Kit for 1998-up
Chevy & GMC Shop Manuals

Tech Note 4: Corporate/AAM
In 1994, General Motors sold it's axle division to a group of investors who renamed their new acquisition American Axle Manufacturing (AAM). The AAM 14 Bolt, 10-1/2" Ring Gear full floater rear axle is what used to be called the as the Chevy or GM corporate 14 Bolt, 10-1/2" Ring Gear full float rear axle.

Applications
Chevy and GMC:
14 Bolt, 10.5" Ring Gear Rear Axle with 1350 Series U-Joint: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018