BILLET 9″ CASE & SUPPORT PKG 3.812″ BORE, 35-SPLINE PINION

Description

Ford 9″ Billet
Aluminium Case Packages

The
Billet Case and
billet pinion support offer an
unmatched strength to weight
combination for the most
brutal Drag Racing
applications. The goal was to
manufacture the finest billet
case- regardless of material
and process costs- and we have
achieved that. The case is
manufactured from 7075-T73
aerospace aluminium that
offers superior strength and
is highly resistant to stress
corrosion. After initial rough
machining, it is vibratory
stress relieved utilizing
subharmonic vibrational
energy. This process
stabilizes the heavily
machined aluminium before
proceeding. Afterwards, it is
solution heat treated and
artificially overaged. This
ensures consistent mechanical
properties throughout the
material. The .650″ thick
mounting flange coupled with
the raised cross rib design
provides a solid structure to
maintain proper alignment of
the ring and pinion. Unique
wrap around style main caps
enhance strength and
stiffness. Each cap is
retained by four AISI 8740
steel bullet end studs which
have 38% higher yield strength
than typical chrome moly. This
allows for an increase in
clamping loads further
enhancing cap rigidity. The
tail bearing area has massive
wall sections to firmly retain
the oversized tail bearing,
which can withstand greater
loads, and is secured by a
special retainer plate. A
large oil scavenging channel
directs additional lubrication
to the pinion support. The
case has a provision to accept
a load bolt which helps
support the ring gear during
tire shake. The case will
accept 9″ , 9 1/2″, and 10″
gear sets. Integrated jack
screws facilitate center
section removal from the rear
end housing.

The
Billet Pinion Support
is manufactured from 2024-T351
aluminium and retained by 12
ARP twelve point bolts. The
support features a unique
design which optimizes
strength, weight reduction,
and bearing lubrication. It
places both pinion bearings
within the case and has a much
tighter fit to the case bore.
This firmly holds the pinion
shaft in proper alignment with
the ring gear, providing
maximum gear life while
avoiding gear bind. The 10″
gear sets require a pinion
support designed specifically
for those gears. This support
eliminates the need for a
spacer between the support and
the case, further contributing
to the integrity of the
assembly.

Note:
Package includes all
necessary components to build
a complete center section less
spool, gear set, and yoke or
coupler