Having problems with Chevrolet GM 8.5 10 bolt rear end? This 10 bolt rear end is sometime refered to as 10 bolt differential, 10 bolt and 10 bolt truck rear end. We offer the most complete line of rear end parts for the
GM 8.5" commonly referred to as the 10 Bolt differential, this differential
was utilized GM used this very popular differential in there full size
Chevrolets, Chevelle, Chevy II, Camaro and and GTO/Firebird Pontiac products
starting in 1970. Full size Blazer, C10, K10 front starting in 1977, K1500
and K2500 Front IFS starting in 1988, the Rear in C10, K10 Blazer in the
rear starting in 1980 to 1994. 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.
* Auburn Positraction, 3.08 to 4.10 ratio rear end package; including Positraction, Ring and Pinion Set and Master Bearing Overhaul kit your cost only $649.00 plus S&H
* Purchase today and get wheel bearing and seal kit 1991 and earlier for only $21,20! 1992 and later model years wheel bearing and seal kit $44.99.
* DurGrip Eaton Style Positraction, 3.08 to 4.10 ratio, rear posi-package includes Positratraction Unit, Ring and Pinion Gear set and Master Bearing Overhaul Kit, your cost $625.00 plus S&H.
*Eaton Positraction Unit 3.08 to 4.10 rear posi-package includes Positraction, Ring & Pinion Set and Master Bearing Overhaul kit your cost only $749.00 plus S&H.
* Purchase today and get wheel bearing ans seal kit 1991 and earlier
for only $21,20! 1992 and later model years wheel bearing and seal kit
$59.99.
Specifications are provided below to assist you in the identification and setup as
well as torque spec's for your Chevy or GM 8.5" differential.
Purchase your parts @ drivetrain.com and receive telephone access to experienced
differential technician to assist you with installation, we help you solve the problem.
Specifications
10-5/8"
10 HOLES
Irregular Gasket Pattern
RG Diameter 8.50"
10 7/16" X 20 LH Threaded Bolts
PINION Diameter 1.626", 30 Spline
CASE: 2.56 & Down, 2.73 Numerically Higher
8620 Material Heat-Treated
Assembly Specifications:
Cover Bolt Ft. Lbs. 20
Pinion Bearing Preload In. Lbs 24-25
Pinion Bearing Preload In. Lbs 10-15 Used
Ring Gear Backlash .005-.009
Ring Gear Bolt to case Ft. Lbs. 90
Side Bearing Caps Ft. Lbs. 60
Differential Ring Gear and Pinion Sets
Quality Gears provide guaranteed performance
Part Number
OE Number
Ratio
Teeth
Price
GM10-308
1258709
3.08
40-13
$207.33
GM10-342
1258710
3.42
41-12
$207.33
GM10-373
1259441
3.73
41-11
$207.33
GM10-373IFS
3.73
41-11
$241.66
GM10-411
26009753
4.11
37-9
$208.33
GM10-411IFS
4.11
37-9
$291.66
GM10-456
4.56
41-9
$208.33
GM10-456IFS
4.56
41-9
$294.66
G885488
4.88
39-8
$241.66
G885513
5.13
41-8
$241.66
G885342IFS
3.42
41-12
$241.66
G885373IFS
3.73
41-11
$241.66
G885411IFS
4.11
37-9
$241.66
G885456IFS
4.56
41-9
$241.66
Is your GM 10 Bolt to weak for your application see our
14 Bolt drop-in replacement differential assembly,
it is the answer to your problem. You can use your existing wheels and
tires.
Differential Parts
Description
Part Number
Price
This
new Redline synthetic gear oil is recommended for replacement when replacing ring
gear pinion sets and or bearings, your cost only $9.95 qt. See other Red
Line Oil Products that we recommend.
Installation Kit use when installing a new ring and you don't what new bearings .
Kit includes new ring gear bolts, pinion seal, nut, crush sleeve, shims. Carrier
shims marking compound and gasket.
EV Kit includes bearings, seals and studs. 10 holes allow for dual bolt patterns
to allow for upgrading to larger studs.
Seal, Axle Car 2.25 Outside Diameter
NAT8660S
$5.57
Seal, Axle Truck 2.535 Outside Diameter
NAT8835S
$5.57
Seal, 4x4 Front Axle Shaft Inner
NAT5131
$16.98
Pinion Seal Rear
NAT1537
$15.37
Pinion Seal 4x4 Front
NAT8622
$17.50
Bearing, Axle
Available to many to list please call for quotation.
Differential Cover
GM 1970 up 1500 Truck, Suburban 1500 & 2500, Blazer, Vans & some Cars, Increase
the fluid capacity, you will find that the fluid will run 15 to 20 degrees cooler.
1.5 quarts to 4 quarts, 3 1/4" overall height
1/2 Ton Pickup, Jimmy, Blazer, Suburban 30 Spline 89-98
1921
$290.59
no-Slip Powertrax 28 spline
92-0785-2805
$445.96
no-Slip Powertrax 30 spline
92-0785-3005
$445.96
Differential Assemblies
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.
Description
Part Number
Price
GM 10 Bolt 8.5" Open Carrier with drum brakes & 6 lug axles
SIXGM10-410
$1010.54
GM10 Bolt 8.5" Open Carrier with drum brakes & 5 lug axles
SIXGM10-410 2WD
$1100.00
GM10 Bolt 8.5" front axle Open Carrier 3.07 Ratio
SIXGM10F-307
$955.53
GM8.25" front axle IFS Open Carrier 373 Ratio
SIXGM825IFS-373
$966.85
We offer a complete line of products to improve the perfromance of your vehicle, check out the following links:
In addition to parts offered here we can also provide manual transmissions and bearing overhaulkits we also provide an impressive list of automotive after marketproducts for car, pickup truck, SUV and 4wd repair parts and accessories the list includes automatic transmission overhaul kits, automatic transmission pans, rear end covers, ring and pinion gears, OE clutch replacements and heavy duty performance clutches, diesel gauge kits and diesel exhaustbrakes, remanufactured manual and automatic transmissions and both transfer case replacements and transfer case overhaul kits and hard parts. Other products we offer for the RV recreational vehiclemarket include REMCO driveline disconnects, tow bars and baseplates. Auxiliary overdrive units to improve vehicle-towing performance and save fuel are available. We have a complete 4wheeling drivetrain product line including complete differential assemblies, limited slip and solid locking positractions. We offer transmission conversion kits including the NV4500as well as replacement kits for light duty GM and Jeep transmissions. To improve your vehicles fuel mileage and performance you may be interested in visiting our Ford, Escape and Powerstroke Diesel products, Dodge Ram, Chevrolet/GMC,Jeep and FJ Cruiser products area. From time to time we offer specials discounts to our registered Internet customers, click below to register and receive advance notice of new products, special bonus offers and to be eligible for our free random gift drawings, we protect your e-mail address, we don't sell, trade or abuse it.
Rear End & Differential Ring Gear and Pinion Sets 
utilized GM used this very popular differential in there full size
Chevrolets, Chevelle, Chevy II, Camaro and and GTO/Firebird Pontiac products
starting in 1970. Full size Blazer, C10, K10 front starting in 1977, K1500
and K2500 Front IFS starting in 1988, the Rear in C10, K10 Blazer in the
rear starting in 1980 to 1994. 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.
