Spicer IPL: 454 Tandem Drive Axle - Manual (Page 32)

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Carrier Mounting Flange Design Change
Carrier Mounting Flange Design Change
Beginning June 3rd, 2002, the nominal thickness of the carrier to housing
flange was increased in the D/R404 family models. This change required
the use of new fastener parts. A new (45mm) capscrew (P/N 130836) was
released as it replaced both 210173 and 130158 old design capscrews.
Additionally, a much thicker boss was added to the flange at the 12:00 &
6:00 o’clock positions. These new thicker flange bosses require an even
longer (70mm) capscrew (P/N 130837). A thicker and larger diameter flat
washer (P/N 130877) was also released as part of this upgrade. The new
washer replaces existing washer 29804. The existing stud (P/N 127641)
and nut (P/N 127567) are not affected by these changes and will continue
to be used.
SERVICE CARRIER NOTE:
Both “thin” flange and “thick” flange design carriers are still used by
various OEM’s. If you have a vehicle that was originally equipped with
a Spicer carrier built with the “Thin Flange” carrier design, it can be
universally serviced with an current (Thick Flange) Carrier Assembly. The
repairing dealer must simply make sure to use the correct axle housing
fasteners/hardware parts when re-installation of the replacement carrier
is done.
• Differential Carriers with “THICK FLANGE” carrier use axle housing
hardware kit (P/N 512087).
• Differential Carriers with “THIN FLANGE” carrier use axle housing
hardware kit (P/N 511600).
• GM Vehicles use a double-ended capscrews at the housing
fastener location. The hardware kits above can be used, but the
unique capscrew must be purchased individually.
New Axle Housing Fasteners
IMPORTANT!
Spicer does not recommend the mixing of various designs carrier-to
housing capscrews on the same assembly. Whether mixing or not,
torques must be measured using a calibrated torque wrench. Failure to
re-torque bolts and nuts to proper specifications may lead to carrier to
housing leaks and possible component damage.
New, Wider and Thicker
Flat Washer (P/N 130877)
Old Capscrew
New, Longer (45 mm)
Capscrew (P/N 130836)
New, Longer (70 mm)
Capscrew (P/N 130837)
Old Flat Washer