QU20815 1/2" Flange Head Diff Housing Bolt for Ford Dana 44, 50IFS Axles

QU20815 1/2" x 7/8" Coarse Thread Flange Head Diff Housing Bolt is an original equipment Spicer factory Flange Head replacement Bolt for 1982-1996 Ford Dana 44IFS and 1982-1997 Ford Dana 50IFS Front Axles. Two of these bolts are used to secure the left side of the IFS Differential Housing to the Left Axle Beam. Serrated Flange Head and factory applied Threadlocker provide excellent resistance to the bolts becoming loose from vibration. Order 2 per axle. Sold Individually.

Also See QU20815U Used Diff Housing Bolt (available while supplies last)

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:
Bolt Size Change 
Matching Parts Dana 44IFS Front Axle
Matching Parts Dana 50IFS Front Axle 
Applications

Tech Note 1: Bolt Size Change 
When the Ford Dana 44IFS and Dana 50IFS Twin Traction Beam Front Axles were first introduced for the 1980 model year, 2 3/8" Bolts (QU95094) were used to secure the left axle beam bracket to the side of the IFS differential housing. The 3/8" bolts were undersized for the application and they were replaced by QU20815 1/2" Bolt as a running engineering change during the 1981 model year. The bolts are easy to identify on the truck. the early, 3/8" bolt has a 9/16" hex head. The later, 1/2" bolt has a 3/4" hex head.

Tech Note 2: Matching Parts Dana 44IFS Front Axle
Under Construction

Tech Note 3: Matching Parts Dana 50IFS Front Axle
Interactive Exploded View XV1010DT 1995, 1996, 1997 Ford F250 Dana 50IFS Axle
QU20280U Left Axle Beam 1981.5-1997
QU20279U Diff Housing 1983-1985

Applications
Ford:
Bronco, F150: 1981.5, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
F250: 1981.5, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
F350: 1981.5, 1982, 1983, 1984, 1985-1985.5