Page 302 - 2018 Racecar Engineering Hot Rod and Early Muscle Car Parts and Accessories Catalog

Full Spools And Mini Spools Ring And Pinion Sets
Popular with dirt track racers, drag racers Heavy duty standard weight ring and pinion
and off-road competitors, spools are sets are made of 8620 steel and heat treated
an economical and effective for extra strength and durability.
alternative to limited slip dif-
ferentials as a traction and
performance enhance- DANA 60
ment. Motive Gear spools 10-3/4" x 11-1/2" Oval, 1966-72 Passenger Cars, 10-Bolt
are manufactured from Part No. Ratio Teeth Description
durable 4140 forged steel MOTD60-373 3.73 41-11 Ring And Pinion Set
that has been fully heat MOTRA29RMK — — Master Installation Kit
treated and CNC-machined,
UHVXOWLQJ LQ GHFUHDVHG GHÀHFWLRQ DQG Chrysler 8.75"
increased gear life. Spools are offered for a wide variety of applica-
tions in standard and lightweight versions. (489) Late Housing, 8-11/16" X 10-19/32" Cover, 1969-73
Passenger Cars, 10-Bolt
Part No. Description
Full Spools Part No. Ratio Teeth Description
MOTC887355L 3.55 39-11 Ring And Pinion Set
MOTFS10-28 GM 8.5" 10-Bolt, 28-Spline
MOTC887373L 3.73 41-11 Ring And Pinion Set
MOTFS10-30 GM 8.5" 10-Bolt, 30-Spline
MOTC887391L 3.91 48-11 Ring And Pinion Set
MOTFS12-30 GM 8.875" 12-Bolt, 30-Spline
MOTFS8.8-31 Ford 8.8", 31-Spline MOTC887410L 4.10 41-10 Ring And Pinion Set
MOTR8.75RLMK — — Master Installation Kit
MOTFS9-28LW Ford 9", 28-Spline, Lightweight
MOTFS9-31LW Ford 9", 31-Spline, Lightweight
Mini Spools Chrysler 8.75"
MOTMS10-28 GM 8.5" 10-Bolt, 28-Spline (742) Early Housing, 8-11/16" x 10-19/32" Cover, 1957-1968
MOTMS10C-28 GM 8.2" 10-Bolt, 28-Spline Passenger Cars, 10 Bolt
MOTMS12C GM 8.875" 12-Bolt, 30-Spline Part No. Ratio Teeth Description
MOTMS7.5-26 GM 7.5" 10-Bolt, 26-Spline MOTC887373E 3.73 41-11 Ring And Pinion Set
MOTMS7.5-28 GM 7.5" 10-Bolt, 28-Spline MOTC887391E 3.91 48-11 Ring And Pinion Set
MOTMS88-28 Ford 8.8", 28-Spline MOTR8.75ERMK — — Master Installation Kit
MOTMS88-31 Ford 8.8", 31-Spline
MOTMS9-28 Ford 9", 28-Spline, Lightweight Chrysler 8.75"
MOTMS9-31 Ford 9", 31-Spline, Lightweight
(741) Early Housing, 8-11/16" X 10-19/32", Cover 1957-68
Passenger Cars, 10-Bolt
Ford 9" Spool Bearing Kit MOTCK9-289 Part No. Ratio Teeth Description
Motive Gear now offers a full selec- MOTC887355M 3.55 39-11 Ring And Pinion Set
tion of Spool Bearing Kits. Ideal when MOTR8.75RMMK — — Master Installation Kit
replacing a spool, ring and pinion, or
when performing a differential over- Ford 8"
haul. Kits are complete with Timken 11" Cover, 1962-69 Passenger Cars, 10-Bolt
2.891" carrier bearings and races.
Part No. Ratio Teeth Description
MOTF880325 3.25 39-12 Ring And Pinion Set
MOTF880355 3.55 39-11 Ring And Pinion Set
Spider Gears MOTF880380 3.80 38-10 Ring And Pinion Set
Kits include all of the components re- MOTRA310RMK — — Master Installation Kit
quired to replace the axle and spidergears
in popular differentials. Each kit includes
axle gears, spider gears, axle and spider
gear washers, cross pin, and cross pin
retaining bolt. Kits are offered for open
differentials only.
Part No. Description
Ford 8.8", 31-Spline Axles,
MOTF8.8BI
Open Differential, 1987-Up
GM 8.5" 10-Bolt, 28-Spline Axles,
MOTGM10BI
Open Differential, 1972-87
GM 8.5" 10-Bolt, 30-Spline Axles,
MOTGM10BI-30
Open Differential, 1988-99
GM 7.5" 10-Bolt, 26-Spline Axles,
MOTGM7.5BI
Open Differential, 1975-88
2018 HOT ROD AND EARLY MUSCLE 301