GM 11.5" Differential Component Parts and Ring and Pinion Gears

  chrysler 8.25

We offer a complete line of rear end parts for the GM 11.5" differential. You can purchase high quality ring and pinion sets in various ratios, high quality bearing rear end bearing overhaul kits including pinion bearings, pinion seal, crush sleeve, pinion nut, shims, ring gear bolts, marking compound and gasket. Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets. We are able to supply axles, internal kits for open carriers that include spider/side gears, crosshafts and trust washers, carriers, cases . Positraction units we offer include Lockrights by Powertrax, Auburn, Detroit Lockers, Trac Loc and ARB air lockers.

Along with our quality parts you have access to applications information for available ring and pinion ratios, information to assist you in identification of the differential that you have. Free information on ring and pinion installation is provided alone with specification and carrier/case breaks when you are considering gear ratio changes. You can review applications available to assist you with selection of the specific positraction unit that you may need to improve your performance.

Applications  
MODEL

YEAR

C/K Truck

2001-UP

G Van, P-Truck

2001-UP

1 Ton All

2001-UP

 

Specification:

  • 14 Bolts on Cover
  • RG Diameter 11.5"
  • 12 9/16" x 18 RH Threaded Bolts
  • Pinion Diameter 2.005" 30 Splines
  • Cases: 4.10 & Numerically Lower 4.63 & Numerically Higher

8620 Material - Heat Treated

Ring and Pinion Part Number Tooth Count & Ratio

Your gears run cooler and last longer!

Order above high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $36.76.

Quality guaranteed performance
Part Number

OE Number

Teeth

Ratio

Price

GM11.5-373

12471452

41-11

3.73

$475.25

GM11.5-410

12471453

41-10

4.10

$475.25

GM11.5-463

40005991

37-8

4.63

$475.25

GM11.5-488

 

39-8

4.88

TBA

GM11.5-513

 

41-8

5.13

TBA

 

Installation Bearing Overhaul Kits:

Part Number

Description

Price

R11.5R Bearing Kit $
R11.5RT Bearing Kit (Timken) $
R11.5RMK Master Bearing Kit $
R11.5RMKT Master Bearing Kit (Timken) $