MOTIVE GEAR PERFORMANCE RING AND PINION -- CHEVROLET
Motive Gears have led the industry with the highest quality ring and pinion gears for street and strip for over 20 years. More Motive Gears have been taken across the Winners Circle than any other brand. Unlike some of our competitors, Motive Gears are easy to install and never have that whine sound. Quality and dependability for the right price has made them the leader in drive train parts.
Contents of Installation Kits
BEARING KIT
gear marking compound
pinion & carrier bearings
(inner&outer)
crush sleeve
pinion nut
pinion seal
brush
gasket
loc-tite |
MASTER KIT
Bearing kit
pinion shims
carrier shims
ring gear bolts |
R&P INSTALLATION KIT
marking compound
pinion shims
carrier shims
crush sleeve
pinion nut
brush
gasket |
|
GM 7.5"
| Model |
Year |
GM Pass. cars (except Monza, Vega, Sunfire)
Camaro, Z28
Chevy S-10 & S-15
Pontiac, Firebird & Trans AM |
77-93
82-97
77-97
82-97 |
Specifications
RG Dia. 7.50
10 3/8 X 18 LH Thread
Pinion dia. 1.438-27
Cases: 3.08 & numerically lower
3.23 & numerically higher |
 |
8-5/16" X 10-9/16"
10 Holes
OVAL |
|
|
|
PART #
|
RATIO
|
PRICE
|
G875273
G875308
G875323
G875342
G875342X*
G875373
G875373X*
G875410
G875410X*
G875456
G875456X* |
2.73
3.08
3.23
3.42
3.42
3.73
3.73
4.10
4.10
4.56
4.56 |
$199
$189
$189
$199
$269
$199
$189
$189
$199
$229
$299 |
| * Fits 3.08 & numerically lowercase |
| Installation Kits
(contents listed at top) |
R7.2RIFS
R7.5GR
R7.5GRMK |
Bearing Kit - Front
Bearing Kit - Rear
Master Bearing Kit - Rear |
$89
$69
$99 |
GM 8.20" 10 Bolt 55-64 Car
| Model |
Year |
Chevy
Corvette
|
55-64
55-62
|
Specifications
RG Dia. 8.20
10 7/16 X 18 LH Thread
Pinion dia. 1.438-17
Cases:3.70 & numerically lower |
 |
11-5/8"
10 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
G884355
G884370
G884411X*
G884456 |
3.55
3.70
4.11
4.56 |
$289
$199
$199
$199 |
| Installation Kits
(contents listed at top) |
| R8.4R |
Bearing Kit |
$89 |
GM 8.20" 10 Bolt Buick, Oldsmobile & Pontiac
| Model |
Year |
Tempest GTO
Firebird
Olds F85
|
64-71
67-71
64-70
|
Specifications
RG Dia. 8.20
10 7/16 X 20 RH Thread
Pinion dia. 1.438-27
B, P & O axles only
|
 |
10-5/8"
10 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
BP882355
BP882390
BP882411
BP882456 |
3.55
3.90
4.11
4.56 |
$299
$299
$299
$299 |
| Installation Kits
(contents listed at top) |
R8.5PR
R8.5PRMK
GM8.5PIK |
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$79
$89
$49 |
GM 8.20" 10 Bolt 64-72 Car
| Model |
Year |
Chevy
Chevelle
Camaro
Nova
|
65-70
64-72
67-70
70-72
|
Specifications
RG Dia. 8.20
10 3/8 X 24 RH Thread
Pinion dia. 1.438-25
|
 |
11" OVAL or
10-5/8" IRREGULAR
10 Holes |
|
|
|
PART #
|
RATIO
|
PRICE
|
G882308
G882336
G882355
G882373
G882411
G882456
G882488
G882513
|
3.08
3.36
3.55
3.73
4.11
4.56
4.88
5.13 |
$279
$299
$299
$199
$189
$179
$279
$279 |
| Installation Kits
(contents listed at top) |
R10CR
R10CRMK
GM8.2IK |
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$69
$89
$49 |
GM Corvette 63-79
| Model |
Year |
Corvette
|
63-79
|
Specifications
RG Dia. 8.5
10 3/8 X 24 RH Thread
Pinion dia. 1.625-30
|
 |
10" X 9-7/8"
8 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
V885308
V885323
V885355
V885370
V885411
|
3.08
3.23
3.55
3.70
4.11 |
$329
$329
$329
$279
$329
|
GM 8.5" "O" Axle
| Model |
Year |
Cutlass
442 |
68-70
68-70
|
Specifications
RG Dia. 8.5
10 3/8 X 18 LH Thread
Pinion dia. 1.626-27
12 bolt cover/10 bolt gears |
 |
10-2/4" X 11"
12 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
O885342X*
O885390X*
O885410X*
|
3.42
3.90
4.10 |
$299
$299
$309
|
| * Fits 3.23 & Down Carrier |
| Installation Kits
(contents listed at top) |
R8.5OR
R8.5ORMK
GM8.5OIK |
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$69
$99
$69 |
GM 8.5" 10 Bolt - Front & Rear
| Model |
Year |
Chevy
Chevelle
Chevy II
Camaro
GTO/Firebird
Olds F85
Z-28
Trans AM
C10, K10 & K20 front
Blazer front
C10, K10 & Blazer rear
K1500 front IFS
K2500 front IFS
|
70-76
70-76
70-75
70-81
70-81
70-76
72-81
72-81
77-87
77-91
80-94
88 & up
88 & up
|
Specifications
RG Dia. 8.5
10 7/16 X 20 LH Thread
Pinion dia. 1.626-30
12 bolt cover/10 bolt gears
Cases: 2.56 & numerically lower
2.73 & numerically higher |
 |
10-5/8"
10 Holes
IRREGULAR |
|
|
| Standard Gears |
|
PART #
|
RATIO
|
PRICE
|
GM10-273
GM10-308
GM10-342
GM10-373
GM10-411
GM10-456
|
2.73
3.08
3.42
3.73
4.11
4.56 |
$169
$169
$169
$199
$169
$169
|
| Performance Gears |
|
PART #
|
RATIO
|
PRICE
|
G885273
G885308
G885323
G885342
G885370
G885373
G885390
G885410
G885456
G885488
G885513
G885538*
G885557*
|
2.73
3.08
3.23
3.42
3.70
3.73
3.90
4.10
4.56
4.88
5.13
5.38
5.57 |
$189
$189
$209
$189
$269
$189
$269
$189
$209
$189
$269
$269
$269
|
| * special cross pin required, part # GM10CS |
| Installation Kits
(contents listed at top) |
R8.2RIFS
R10RF
R10R
R10RFMK
R10RMK
GM8.5IK
GM8.5IKF |
Bearing Kit - Front IFS
Bearing Kit - Front Non-IFS
Bearing Kit - Rear
Master Bearing Kitr - Front Non-IFS
Master Bearing Kitr - Rear
R & P Installation Kit - Rear
R & P Installation Kit - Front Non-IFS |
$79
$69
$69
$99
$159
$49
$59 |
GM 8.875" 12 Bolt Car
| Model |
Year |
Chevy
Chevy II
Chevelle
Camaro
GTO/Firebird
Olds F85
|
65-72
65-72
65-72
67-72
70-72
68-69
|
Specifications
RG Dia. 8.875
12 3/8 X 24 RH Thread
Pinion dia. 1.625-30
12 bolt cover/10 bolt gears
Cases: 3.73 & numerically lower
3.90 & numerically higher |
 |
10-7/8"
12 Holes
OVAL |
|
|
|
PART #
|
RATIO
|
PRICE
|
G888308
G888342
G888355
G888373
G888390
G888411
G888411X*
G888430
G888433
G888456
G888456X*
G888488
G888488X*
G888514
G888538
G888557
G888586
G888614
|
3.08
3.42
3.55
3.73
3.90
4.11
4.11
4.30
4.33
4.56
4.56
4.88
4.88
5.14
5.38
5.57
5.86
6.14 |
$259
$179
$249
$179
$249
$179
$209
$239
$239
$179
$249
$189
$249
$189
$259
$259
$259
$259
|
| * fits 3.07-3.73 case |
| Installation Kits
(contents listed at top) |
R12CR
R12CRMK
GM12IKC |
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$59
$79
$48 |
GM 8.875" 12 Bolt Truck
| Model |
Year |
1/2 3/4 truck
G20 G25
G10 G15
K10 K15
C10 C15
|
64-82
69-81
64-81
64-82
|
Specifications
RG Dia. 8.875
12 3/8 X 24 RH Thread
Pinion dia. 1.438-30 |
 |
11-1/2"
12 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
GM-12308
GM-12342
GM-12373
GM-12373X*
GM-12411
GM-12411X*
GM-12456
GM-12456X*
GM-12488
GM-12488X*
GM-12513
GM-12538
|
3.08
3.42
3.73
3.73
4.11
4.11
4.56
4.56
4.88
4.88
5.13
5.38 |
$159
$159
$159
$169
$169
$169
$169
$259
$239
$259
$239
$239
|
| * fits 2.76-3.42 case |
| Installation Kits
(contents listed at top) |
R12R
R12RMK
GM12IK |
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$69
$99
$49 |
GM 9.5" 14 Bolt - Front & Rear
| Model |
Year |
C10 C15 C20
C30 C35
K10 K15
K20 K25
K30 K35
3/4 - 1 ton
3/4 - 1 ton front IFS
|
88-96
83-96
88-96
81-96
89-96
81-92
88-96
|
Specifications
RG Dia. 9.5
12 12mm X 1.50 LH Thread
Pinion dia. 1.876-30 |
 |
12-1/8" X 13-5/16"
14 Holes
IRREGULAR |
|
|
| Standard Gears |
|
PART #
|
RATIO
|
PRICE
|
GM9.5-342
GM9.5-373
GM9.5-410
GM9.5-456
|
3.42
3.73
4.10
4.56 |
$199
$199
$199
$199
|
| Performance Gears |
|
PART #
|
RATIO
|
PRICE
|
G89342
G89373ifs
G89410ifs
G89456ifs
|
3.42
3.73
4.10
4.56 |
$249
$249
$249
$249
|
| Installation Kits
(contents listed at top) |
R9.2RIFS
R9.5GR
R9.5GRMK
GM9.5IK |
Bearing Kit
Bearing Kit
Master Bearing Kit
R & P Installation Kit |
$99
$109
$139
$49 |
GM 10.5" 14 Bolt
| Model |
Year |
3/4-1 ton
G30 G35
C20 C25
C30 C35
K20 K25
K30 K35
|
73-92
73-96
73-96
73-96
81-92
88-96
|
Specifications
RG Dia. 10.5
12 9/16 X 18 RH Thread
Pinion dia. 1.750-30 |
 |
14-7/8" X 13"
14 Holes
IRREGULAR |
|
|
|
PART #
|
RATIO
|
PRICE
|
GM10.5-373
GM10.5-410
GM10.5-456
GM10.5-456X*
GM10.5-488
GM10.5-488X*
GM10.5-513
|
3.73
4.10
4.56
4.56
4.88
4.88
5.13 |
$189
$189
$189
$219
$189
$199
$209
|
| * fits 4.10 & down case |
| Installation Kits
(contents listed at top) |
R14R
R14RL
R14RMKH
R14RMKL
R14RLMKH
R14RLMKL
GM10.5IK |
Bearing Kit
Bearing Kit (Second Design)
Master Bearing Kit (4.10 & down)
Master Bearing Kit (4.56 & up)
Master Bearing Kit (4.10 & down)
Master Bearing Kit (4.56 & up)
R & P Installation Kit |
$89
$89
$109
$109
$119
$119
$59 |
