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National Drivetrain

GM 8.875" Truck Motive Gear Ring and Pinion

Engineered to out perform the competition! These Ring and Pinions are the finest made for the GM 12-Bolt Truck Rear End.

The following treatments in production make the difference between this brand and all the others in the market:

• CNC Throughout
• Computer Controlled Heat Treatment
• Index Tooth Spacing
• Central Contact Pattern
• Cutting Edge Lapping
• Easy Set Up

SPECIFICATIONS:

• RG DIAMETER 8.875""

• 12 3/8" X 24 RH THREADED RING GEAR BOLTS

• PINION DIAMETER 1.438" 30 SPLINES

• CASE BREAKS 2.73/2.76 to 3.42/3.73

• AXLE SPLINE COUNT 30

• 12-BOLT COVER

   
bluebox.jpg GM 12 BOLT TRUCK (342 Ratio)
$157.95
GM12-342T
RATIO: 3.42
MANUFACTURER: Motive Gear
MATERIAL: 8620 Heat Treated Alloy
CASE BREAKS: 2.56 & lower, 2.76 to 3.42 and 3.73 & higher

 

   
bluebox.jpg GM 12 BOLT TRUCK (373 Ratio)
$157.95
GM12-373T
RATIO: 2.73
MANUFACTURER: Motive Gear
MATERIAL: 8620 Heat Treated Alloy
CASE BREAKS: 2.56 & lower, 2.76 to 3.42 and 3.73 & higher

 

   
bluebox.jpg GM 12 BOLT TRUCK (410 Ratio)
$157.95
GM12-410T
RATIO: 2.73
MANUFACTURER: Motive Gear
MATERIAL: 8620 Heat Treated Alloy
CASE BREAKS: 2.56 & lower, 2.76 to 3.42 and 3.73 & higher

 

   
bluebox.jpg GM 12 BOLT TRUCK (411 Ratio) THICK RING & PINION
$157.95
GM12-411TECX
RATIO: 4.11 Thick, Fits the 2.76 to 3.42 carrier
MANUFACTURER: Motive Gear
MATERIAL: 8620 Heat Treated Alloy
CASE BREAKS: 2.56 & lower, 2.76 to 3.42 and 3.73 & higher

 

   
bluebox.jpg GM 12 BOLT TRUCK (456 Ratio)
$157.95
GM12-456T
RATIO: 4.56
MANUFACTURER: Motive Gear
MATERIAL: 8620 Heat Treated Alloy
CASE BREAKS: 2.56 & lower, 2.76 to 3.42 and 3.73 & higher

 

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