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Chevrolet GM 10.5" Ring and Pinions Sets |
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Having a problem with Chevrolet GMC 10.5 14 bolt rear end? We offer the most complete line of rear end parts for the
GM 14 Bolt, this differential
was utilized GM used this very popular differential
in there full size Chevrolets 3/4 and 1 ton, C30, C35, K20, K25, G30,
G35. Our inventory includes ring gear and pinion sets, including aftermarket
and OE gear sets. We are able to supply positraction units, we offer Lockrights
by Powertrax, Auburn, Detroit Lockers, Trac Loc and ARB air lockers. We
are a Dana Spicer volume distributor and offer a complete line or ring
gear and pinions and differential parts.
We can provide ring gear and pinion kits, for replacing current ratios
or changing differential ratio for optimizing your performance, in addition
to ring and pinion gear sets we offer differential bearing kit, carrier
or case replacements including spider and side gear (internal kits). Positraction
units and axles are also available to upgrade your existing differential
assembly.
Below is a list of the information and parts that we can supply for your GM Cheverolet 14 bolt 10.5" Differential applications:
Specifications are provided below to assist you in the identification and setup as
well as torque spec's for your Chevy or GM differential.
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Applications
| Model |
Year |
Model |
Year
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| 3/4 Ton 1 Ton |
73-92 |
K20, K25 |
73-96
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| G30, G35 |
73-96 |
K30, K35 |
73-96
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| C20, C25 |
73-96 |
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| C30, C35 |
73-96 |
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What differential ratio do you have?
Ring and Pinion Installation Instructions
Purchase your ring and pinion parts from www.drivetrain.com and receive free technical phone support if required during installation! 
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Specifications
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14-7/8 x 13"
14 HOLES
Irregular Gasket Pattern
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Differential Ring Gear and Pinion Sets |
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| Part Number |
OE Number |
Ratio
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Teeth |
Price
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| G10.5-342 |
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3.42
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41-12
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$365.00
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| GM10.5-373 |
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3.73
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41-11
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$241.61
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Installation Tool, Your Cost $48.98 + S&H.
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| GM10.5-373OE |
327721 |
3.73
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41-11
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$366.66
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| GM10.5-410 |
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4.10
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41-10
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$241.61
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| GM10.5-456 |
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4.56
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41-09
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$251.91
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| GM10.5-456X* |
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4.56
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41-09
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$291.91
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| GM10.5-488 |
26054987 |
4.88
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41-09
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$291.81
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| GM10.5-488X* |
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4.88
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39-08
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$266.66
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| GM10.5-513 |
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5.13
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$325.65
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| *Fits 4.10 & Down Case |
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| Differential Parts & Bearing Overhaul Kits |
Part Number
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Price
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| Case, Empty 10.5" Low |
SUP-65-2023A
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$220.11
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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 $63.95 plus S&H, a $69.00 value. See
other Red Line Oil Products that we recommend.
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| Case, Empty 10.5" High |
SUP-65-2023B
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$220.11
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| Bearing Kit (1st Design) 72-88 |
R14R
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$117.50
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| Bearing Kit (1st Design) 88 & DN (Timken Bearing) |
R14RT
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$125.50
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| Master Bearing Kit (1st Design)72-88 (4.10 & DN) |
R14RMKH
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$146.56
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| Master Bearing kit (1st Design) 72-88 (4.10 & DN) (Timken
Bearing) |
R14RMKHT
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$156.96
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| Master Bearing Kit (1st Design) 72-88 (4.56 & Up) |
R14RMKL
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$136.86
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| Master Bearing Kit (1st Design) 72-Up (4.56 & Up) (Timken
Bearing) |
R14RMKLT
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$180.56
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| Bearing Kit (Second Design) 89 & Up |
R14RL
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$118.28
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| Bearing Kit (Second Design) 89 & Up (Timken Bearing) |
R14RLT
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$131.31
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| Master Bearing Kit (Second Design) 89 & Up (4.10 & DN) |
R14RLMKH
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$146.66
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| Master Bearing Kit (Second Design) 89 & Up (4.10 &
DN) (Timken Bearing) |
R14RLMKHT
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$162.82
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| Master Bearing Kit (Second Design) 89 & Up (4.56 & Up) |
R14RLMKL
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$136.86
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| Master Bearing Kit (Second Design) 89 & Up- (Timken
Bearing) |
R14RLMKLT
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$180.60
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| R & P Installation Kit |
GM10.5IK
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$50.16
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| R & P Installation Kit |
GM10.5IKL
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$47.87
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Pinion Installation Kit Bearing, Seal, Nut (early style)
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MW-R14RPK |
$102.95 |
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| Internal Kit 10.5" Open (spider/side gears, cross shaft thrust washer) |
SUP-85-2023
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$235.55
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| Axle 31 11/16", 8 Lug 30 Spline 73-98 TRUCK, VAN, SUBURBAN L/R |
3977383
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$197.92
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TOUGH Axles!
Superior Alloy
Induction Hardened
Rolled Splines 35% stronger than cut splines
2 Year Warranty!
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| Axle 37 9/16" 8 Lug 30 Spline 73-91 TRUCK, VAN, SUBURBAN |
3977384
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$201.88
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| Wheel Bearing and Seal Kit |
A38/2081
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$70.60
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| Inner Hub Bearing and Race Kit |
382A/387AS
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$83.73
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Differential Cover
Full Floating Axle, 1973 up 2500 & 3500, Check to ensure that you have Full-Floating
Axle it will have a 6 bolt flange holding in the pinion just behind the pinion yoke.
Increase the fluid capacity to six quarts, overall height 4 1/8", you will find
that the fluid will run 15 to 20 degrees cooler. |
DTSGM14 Bolt 10.5"
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$270.00
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Description Positraction Units
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Part Number
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Price
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What's the difference in Positraction's?
Check out Differentials what's the
Difference
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Detroit Locker 30 Spline (install inside your case)
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225S10
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$548.28
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Eaton Positraction 30 spline 4.56 and up, 1973 and up
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19610-010
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$599.00
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Eaton Positraction 30 spline 4.10and down
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19689-010
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$$599.00
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Gov-Loc Positraction
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SUP-GL105
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$492.62
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Lockright Powertrax 30 spline
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1955
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$309.50
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No-Slip Powertrax 30 spline
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92-0705-3000
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$485.75
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Differential Assemblies |
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Drum to Drum Disk to Disk - complete assemblies including axles, ring gear, pinion,
internal kit to brake flanges some units even have brakes including hubs. |
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Description
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Part Number
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Price
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| 10.5" 14 bolt Open Carrier 3.73 Ratio Drum |
SIXGM14-373
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$899.98
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| 10.5" 14 bolt Open Carrier 4.10 Ratio Drum |
SIXGM14-410
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$899.98
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| 10.5" 14 bolt Locker 4.56 Ratio Drum |
SIXGM14-456
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$899.98
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| Front 9.25IFS-373 Open Carrier 3.73 Ratio |
GM925IFS-373
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$1099.98
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Ring and Pinion Sets 
