Tech Note 1: Installing Snap RingThe GM 14 Bolt Full Floating Rear Axle Hub is designed so the outer wheel bearing and cup are installed from the BACKSIDE of of the hub before the inner wheel bearing components are assembled. Therefore, installation of the outer wheel bearing requires three tools (besides a driver handle) instead of one. The flat side of QT1801 Cup Installer is used to drive/press the outer cup in until it clears the snap ring groove. The Snap Ring is then installed in the hub groove with snap ring pliers. Next you use a suitable tool to drive/press the cup back against the snap ring. Inner Wheel Bearing and Seal installation is done in the conventional manner.

Now we can write down a new fraction expressed by its Prime Factors and cancel common factors in numerator and denominator:

Part fit perfect, and was exactly what I needed. Shipping was fast and arrived on time. I would buy parts again as I need them

The first way to simplify the fraction 30/72 is to use the Greatest Common Factor (GCF) of our numerator [30] and denominator [72].

Tech Note 3: Re-using Snap RingQU30112 Retaining Ring is reusable if it is in good condition. Replace any Ring that is misshapen or damaged in any way!

In order to simplify our fraction we can start dividing both the numerator [30] and denominator [72] by the smallest possible number (2,3,4,5... and so on), and repeat this until it is impossible to divide without a reminder.

Tech Note 5: RenameIn 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 GM corporate 14 Bolt, 10-1/2" Ring Gear full float rear axle.

Exact fit. No fuss. Easy ordering and prompt delivery. Great to know the people still carry these hard to find parts for the old rigs. 77 gmc k25 sb400 th 350. Dads truck. RIP.

Tech Note 4: Dana 70 RearDana 70 Heavy Duty (70HD) axles were used in both Single Rear Wheel (SRW) and Dual Rear Wheel (DRW) 1 ton pickups and pickup based cab and chassis applications as an alternative to GM 14 bolt 10.5" rear axles. Conventional Van and Panel Van based models may have Dana 70B, 70U, or 70HD axles depending upon the year, Gross Vehicle Weight (GVW), and chassis model.

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Another method to reduce the fraction 30/72 to its simplest form is to use the Prime Factors of numerator [30] and denominator [72].

QU30112 Hub Snap Ring for Outer Wheel Bearing Cup on 1973-2010 AAM/GM 14 Bolt 10-1/2" Ring Gear and 2001-2010 AAM/GM 11-1/2" Full Float Rear Axles. Also fits 1973-1991 Chevy/GM Dana 70 series Full Float Rear Axles with 2" outer spindle threads.

I have a 83 Chevy 3/4 ton 2wd. I replaced the hub bearings and the old snap ring was wore out. I couldn’t find the original anywhere. Torque King had one with the same diameter and thickness, worked perfectly.

Tech Note 2: Matching PartsQU40036 Spindle Nut 1973-1981 (Uses 2 per side)QU40038 Inner Spindle Thrust Washer 1973-1981 (used with QU40036 Nuts and QU40037 Lock Washer)QU30111 Spindle Nut, Single Type (Used on some 1980-1981 and 1982-2010)QU30110 Spindle Nut Key (used with QU30111)QU30109 Spindle Nut Retainer Ring (1 or 2 per side depending upon year, used with QU30111)TK8310 Rear Wheel Bearing and Seal Kit 1973-2000 TK8012 SRW Master Rear Wheel Bearing Kit for 10.5" or 11.5" 2001-2010TK8009 DRW Master Rear Wheel Bearing Kit for 11.5" 2001-2010QU30010 Axle Flange Gasket for 1973-1987QU30108 Axle Shaft Flange Gasket for 1988-2010Chevy/GMC Shop Manuals

Dan the Gear Man® Tech Notes: Installing Snap Ring Matching Parts Re-using Snap Ring Dana 70 Rear Axle Rename Applications

Applications:Chevy/GM:Dana 70 series Full Float Rear Axles with 2" outer spindle threads: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991AAM 14 Bolt 10-1/2" Ring Gear: 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, 2010AAM 11-1/2" Full Float Rear Axles: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010