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Motive Gear- Ring & Pinion
MOTIVE GEAR PERFORMANCE RING AND PINION -- FORD

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
FORD 7.5"
Model Year
Bronco
Ranger w/o 4.0L
Ford full size
Mustang
Thunderbird
After '93 need Ford tag #
84-90
83-96
79-86
79-96
80-94
 
Specifications
RG Dia. 7.5
10 7/16 X 20 RH Thread
Pinion dia. 1.626-28
10-3/4" X 9-9/16"
10 Holes
OVAL
PART #
RATIO
PRICE
F7.5-308
F7.5-345
F7.5-373*
F7.5-410*
3.08
3.45
3.73
4.10
$169
$169
$169
$169
* Requires cross shaft (E4SZ4211A)
Will not fit Auburn carrier
Installation Kits (contents listed at top)
R7.5RF
R7.5RFMK
F7.5IK
Bearing Kit
Master Bearing Kit
R & P Installation Kit
$69
$89
$49

Ford 8.0"
Model Year
Falcon
Mustang
Comet
Cougar
Fairlane
62-70
65-79
64-72
67-72
60-72
Specifications
RG Dia. 8
10 7/16 X 20 RH Thread
Pinion dia. 1.188-25
11"
10 Holes
OVAL
PART #
RATIO
PRICE
F880300
F880355
F880380
F880411
F880462
3.00
3.55
3.80
4.11
4.62
$179
$179
$199
$179
$209
Installation Kits (contents listed at top)
RA31OR
RA31ORMK
F8IK
Bearing Kit
Master Bearing Kit
R & P Installation Kit
$79
$99
$49

Ford 8.8"
Model Year
Bronco
Explorer
Ranger w/4.0L
E150-250
F100
F150-250
Mustang
Cougar
After '93 need Ford tag #
90-96
90½-96
90½-92
83-96
81-90
81-96
86-97
88-97
 
Specifications
RG Dia. 8.80
10 7/16 X 20 RH Thread
Pinion dia. 1.626-30
10-9/16" X 10-13/16"
10 Holes
OVAL
Standard Gears
PART #
RATIO
PRICE
F8.8-308
F8.8-327
F8.8-355
F8.8-373
F8.8-410
3.08
3.27
3.55
3.73
4.10
$179
$179
$169
$179
$179
Performance Gears
PART #
RATIO
PRICE
F888308
F888327
F888331ifs
F888355
F888355ifs
F888373
F888373ifs
F888410
F888410ifs
F888430
F888433
F888456*
F888456ifs
F888488*
F888514
3.08
3.27
3.31
3.55
3.55
3.73
3.73
4.10
4.10
4.30
4.33
4.56
4.56
4.88
5.14
$215
$215
$215
$185
$215
$185
$215
$185
$215
$215
$249
$185
$215
$259
$279
* special pinion shaft required
Installation Kits (contents listed at top)
R8.8R
R8.8RMK
F8.8IK
Bearing Kit
Master Bearing Kit
R & P Installation Kit
$59
$85
$39

Ford 9.0"
Model Year
Bronco
E200
F100-150
E100-150
Ford full size
Fairlane
Mustang
Cougar
Torino
67-86
68-74
70-86
86-87
57-78
64-70
65-73
67-79
71-79
Specifications
10 bolt 3rd member
Alm. or Steel housing
Pinion dia. 1.626-30
RG Dia. 9
10 7/16 X 20 RH Thread
Pinion dia. 1.313-28
11-3/4"
10 Holes
OVAL
Street Gears
PART #
RATIO
PRICE
F9-300
F9-325
F9-350
F9-370
F9-389
F9-411
F9-456
F9-486
3.00
3.25
3.50
3.70
3.89
4.11
4.56
4.86
$169
$169
$139
$169
$159
$169
$159
$169
Pro Gears 1957 & up
PART #
RATIO
PRICE
F990486
F990500
F990514
F990522
F990529
F990543
F990567
F990583
F990600
F990620
F990633
F990650
4.86
5.00
5.14
5.22
5.29
5.43
5.67
5.83
6.00
6.20
6.33
6.50
$359
$299
$299
$299
$299
$299
$299
$299
$299
$299
$299
$299
Performance Street and Strip
PART #
RATIO
PRICE
F890280
F890286
F890294
F890300
F890310
F890315
F890325
F890340
F890350
F890355
F890356
F890360
F890370
F890375
F890380
F890382
F890389
F890391
F890400
F890411
F890422
F890430
F890433
F890444
F890450
F890456
F890457
F890463
F890471
F890478
F890486
F890500
F890514
F890529
F890543
F890550
F890557
F890567
F890583
F890600
F890614
F890620
F890633
F890650
2.80
2.86
2.94
3.00
3.10
3.15
3.25
3.40
3.50
3.55
3.56
3.60
3.70
3.75
3.80
3.82
3.89
3.91
4.00
4.11
4.22
4.30
4.33
4.44
4.50
4.56
4.57
4.63
4.71
4.78
4.86
5.00
5.14
5.29
5.43
5.50
5.57
5.67
5.83
6.00
6.14
6.20
6.33
6.50
$409
$409
$409
$189
$529
$409
$189
$409
$179
$259
$509
$409
$179
$409
$509
$409
$189
$409
$409
$179
$409
$179
$229
$409
$409
$219
$179
$409
$189
$509
$219
$239
$189
$189
$189
$509
$509
$219
$189
$249
$239
$189
$189
$179
Installation Kits (contents listed at top)
R9R
R9RMK
F9IK
Bearing Kit
Master Bearing Kit
R&P Installation Kit
$69
$95
$34