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GM8.875" 12 Bolt Truck DIFFERENTIAL COMPONENT PARTS
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| We offer a complete line of rear end parts for the GM 8.875"
commonly refered to as the 12 Bolt truck differential, this differential was utalized
GM used this very popular differential in there full size Chevrolet trucks starting
in 1964 to 1982. Our inventory includes ring gear and pinion sets, including aftermarket
and OE gear sets. We are able to supply axles, bearing overhaul kits, carriers, cases,
spider and side gears. Positraction units we offer include Lockrights by Powertrax,
Auburn, Detroit Lockers, Trac Loc and ARB air lockers. We are a Dana Spice volume
distributor and offer a complete line or ring gear and pinions to the large Dana
80 differential. In addition to the Dana Spicer line we quality offer differential
products. Specifications are provided below to assist you in the identification and setup as well as torque spec's for your Chevy or GM 8.875" differential. |
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Purchase your parts @ drivetrain.com and receive telephone access to experienced differential technician to assist you with installation, we help you solve the problem. |
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GM 8.875" 12 Bolt Differential Ring Gear and Pinion Sets |
Quaility Gears provide guaranteed performance |
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| Part Number | OE Number |
Ratio |
Teeth |
Price |
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| GM12-308 |
3.08 |
40-13 |
$214.94 |
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| GM12-342 |
3.42 |
41-12 |
$214.94 |
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| GM12-373 |
3.73 |
41-11 |
$214.94 |
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| GM12-373X* |
3.73 |
41-11 |
$214.94 |
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| GM12-411 |
4.11 |
39-9 |
$214.94 |
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| GM12-411X* |
4.11 |
37-9 |
$214.94 |
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| GM12-456 |
4.56 |
41-9 |
$214.94 |
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| *Fits 2.76 go 3.42 Case | ||||||
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Description |
Part Number |
Price |
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| Case, Empty Open 8.875" 3.73 -UP |
6258086 |
$185.25 |
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| Case, Empty Open 8.875" 3.42 -Down |
6258088 |
$395.00 |
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| Bearing/Overhaul Kit 8.875" Rear |
DTSR12RMK |
$102.82 |
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| Internal Kit 8.875" 30 spline Open (spider/side gears, cross shaft thrust washer) |
GM12BI |
$116.26 |
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| Axle 30 Spline, 65-69 30 3/4" long 6 holes R&L |
PA6068 |
$142.52 |
Installation Tool, Your Cost $49.98 + S&H |
| Axle 30 Spline, 65-69, 6 hole to 5 hole conversion L&R. 30 3/4" length. |
PA5855 |
$157.57 |
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| Axle 30 Spline 4wd 70-81 31 9/32" length 6 hole |
PA5383 |
$136.86 |
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| Axle 30 Spline 2wd 70-81 31 5/16" length 5 hole |
PA5569 |
$136.86 |
| Description |
Part Number |
Price |
Whats the difference in Positractions? Differentials whats the Difference |
| Auburn Limited Slip Positraction 30 Spline | 542032 |
$449.29 |
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| Auburn Limited Slip Positraction 30 Spline | 542034 |
$449.29 |
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| Detroit Locker 30 Spline | 187C150A |
$531.20$ |
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| Eaton Large Hub GM GM Truck 1961-1980, 30 spline, 3.42 & down | 19587-010 |
$442.86 |
Recommended replacement for non-repairable non-working GM stock Gov-loc positraciton |
| Eaton Large Hub GM Truck 1961, to 1980 30 spline, 3.73 & up | 19556-10 |
$442.82 |
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| LockRight 1/2 Ton Pickup 30 Spline | 1910 |
$297.72 |
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| no-Slip Powertrax 30 spline | 92-0788-3005 |
$452.76 |
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General Motors 12 bolt 8.875 inch differential parts and accessories
In addition to the General Motors 12 bolt 8.875 inch differential parts and accessories listed here, we also provide an impressive list of automotive after market products for car, pickup truck, SUV and 4wd repair parts and accessories that includes rear end covers, ring and pinion gears, OE clutches and heavy duty performance clutches, diesel gauge kits, exhaust brakes, re manufactured manual transmissions and both manual and automatic overhaul kits. Other products we offer for the RV recreational vehicle market include REMCO drivelinedisconnects, tow bar and baseplates and auxiliary overdrive units to improve vehicle performance and save fuel. We have a complete 4 wheeling drivetrain product line including complete differential assemblies, limited slip and other solid locking positractions. We offer transmission conversion kits including the NV4500 and NV5600 as well as replacement kits for light duty GM and Jeep transmissions. You may be interested in visiting our Ford and Powerstroke Diesel page, Dodge Ram and other Jeep pages for detailed information.
Watch for future additions of new products to be added to
our on-line catalog including advanced wheels, tires, engine tune-up kits and other
accessories.
Our large question
and answer data base it's provided for you it provides
additional information that may be of interest to you. Our easy to use vehicle information
data base is cataloged by vehicle manufacture, part or component, to review just
select Q&A
data.
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