Page 485 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Performance Ring And Pinion Sets Full Spools
Choose from standard or lightweight “AX” ring and pinion sets. Precision machined and heat-treated, Motive Gear full
Standard Part No. “AX” Part No. Ratio Teeth spools offer reduced gear deflection and weight. Choose
Chrysler 8.75", Early “742” Housing, 1.75" Dia. Pinion from standard or lightweight units. Not for street use.
MOTC887391E — 3.91 48-11
Chrysler 8.75", Late “489” Housing, 1.875" Dia. Pinion Part No. Description
MOTC887391L — 3.91 48-11 MOTFS10-28 GM 8.5" 10-Bolt, 28-Spline
MOTC887410L — 4.10 41-10 MOTFS10-30 GM 8.5" 10-Bolt, 30-Spline
Ford 8.8", 30-Spline, 1.626" Dia. Pinion MOTFS8.8-31 Ford 8.8", 31-Spline
MOTF888390 — 3.90 43-11 MOTFS9-28LW Ford 9", 28-Spline, Lightweight
MOTF888410 — 4.10 41-10 MOTFS9-31LW ‡ Ford 9", 31-Spline, Lightweight
MOTF888456 — 4.56 41-9
MOTF888514 — 5.14 36-7 ‡Requires 3.062" bore housing.
Ford 9", 28-Spline, 1.313" Dia. Pinion
MOTF890411 — 4.11 37-9 Spool Bearing Kit For Ford 9"
MOTF890430 — 4.30 43-10
MOTF890457 — 4.57 32-7 MOTCK9-289
MOTF890486 — 4.86 34-7 Kit includes one pair of premium Timken spool (carrier) bearings
MOTF890514 — 5.14 36-7
— MOTF890529AX 5.29 37-7 for Ford 9" rears using 2.891" bearings.
— MOTF890537AX 5.37 43-8
MOTF890543 — 5.43 38-7
— MOTF890557AX 5.57 39-7 “Pro” Drag Racing Ring And Pinion Sets
MOTF890583 MOTF890583AX 5.83 35-6 Specifically engineered for drag racing only, 9310
MOTF890600 MOTF890600AX 6.00 36-6
— MOTF890614AX 6.14 43-7 steel “Pro” gear sets are EuroFuture heat treated for
MOTF890620 MOTF890620AX 6.20 31-5 maximum durability. Not for street use.
MOTF890633 MOTF890633AX 6.33 38-6 Part No. Ratio Teeth
MOTF890650 MOTF890650AX 6.50 39-6 Ford 9", 28-Spline, 1.313" (Small) Dia. Pinion
GM 7.5"/7.625" 10-Bolt, 27-Spline, 1.438" Dia. Pinion MOTF990429SP 4.29 30-7
MOTG875390 — 3.90 43-11
MOTG875410 — 4.10 41-10 MOTF990514SP 5.14 36-7
GM 8.2" 10-Bolt, 27-Spline, 1.438" Dia. Pinion MOTF990529SP 5.29 37-7
MOTG882411 — 4.11 37-9 MOTF990543SP 5.43 38-8
GM 8.5" 10-Bolt, 30-Spline, 1.626" Dia. Pinion Ford 9", 35-Spline, 1.500" (Large) Dia. Pinion
MOTG885410 — 4.10 41-10 MOTF990370BP 3.70 37-10
MOTG885456 — 4.56 41-9 MOTF990389BP 3.89 35-9
GM 8.875" 12-Bolt, 30-Spline, 1.625" Dia. Pinion MOTF990411BP 4.11 37-9
MOTG888390 — 3.90 39-10 MOTF990429BP 4.29 30-7
MOTG888411 — 4.10 41-10 MOTF995456BP 4.56 41-9
GM 2010-12 Chevrolet Camaro
MOTG886391 — 3.91 39-10
GM 2004-06 Pontiac GTO Mini Installation Kits
MOTG80390 — 3.90 39-10 Includes all of the components necessary to prop-
erly install a new ring and pinion. Includes pinion
Differential Master Bearing Kits
and carrier shims, pinion nut, ring gear bolts, gear
Kit includes everything to overhaul a differential, marking compound, pinion seal, crush sleeve,
pinion bearings and shims, pinion seal, carrier brush, and cover gasket or RTV.
bearings and shims, pilot bearing (where appli- Part No. Description
cable), gear marking compound and brush, crush MOTR8.75RMMK MOTF8.8IK Ford 8.8"
sleeve, pinion nut, loctite, cover gasket/RTV, and ring gear bolts. MOTF9IK Ford 9", 28-Spline
MOTGM12IKC GM 12-Bolt 8.875"
Part No. Application MOTGM8.5IK GM 10-Bolt 8.50"
MOTRA29RMK Dana 60 9.75", 29-Spline 1.626" Pinion, 1950-97
MOTR8.75RLMK Chrysler 8.75", “489” Housing, 1.875" Pinion, 1969-74
MOTR8.75RMMK Chrysler 8.75", “741” Housing, 1.375" Pinion, 1957-68
MOTR8.75ERMK Chrysler 8.75", “742” Housing, 1.750" Pinion, 1957-68
MOTRA310RMK Ford 8", 25-Spline, 1.188" Pinion, 1964-80
MOTR8.8RMK Ford 8.8", 30-Spline, 1.626" Pinion, 1981-Up Exc. IRS
MOTR9RMK † Ford 9", 28-Spline, 2.891" Housing, 1957-86
MOTR9R28MK* Ford 9", 28-Spline, 2.891" Housing, Late Model
MOTR10RVLMKT 1997-13 Corvette, 10-Bolt, 8.25" Ring Gear
MOTR10RVMKT 1963-79 Corvette, 10-Bolt, 8.5" Ring Gear
MOTR10CRMK GM 8.2" 10-Bolt, 27-Spline, 1.438" Pinion, Chevy
MOTR8.5PRMK GM 8.2" 10-Bolt, 27-Spline, 1.438" Pinion, B.O.P
MOTR10REMK GM 8.5" 10-Bolt, 30-Spline, 1.626" Pinion, 1970-99
MOTR10RLMK GM 8.5" 10-Bolt, 30-Spline, 1.626" Pinion, 1999-Up
MOTR12CRMK GM 12-Bolt 8.875", 30-Spline, 1.625" Pinion, 1964-72
MOTR12CRSK** GM 12-Bolt 8.875", 30-Spline, 1.625" Pinion, 1964-72
*With LM501310 and LM501349 bearings. †With LM102910 and LM102949
bearings.**Super Master Bearing Kit includes the addition of axle seals and bearings.
Photo by: Matt Hauch Greg Seher
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