Parts and Tools for GM 8.5" 10 Bolt Front Axles in 1977-1991 GM 4x4 Trucks
We stock a number of parts for the GM 10 Bolt solid front 4x4 drive axle. GM introduced the corporate, 10 Bolt, 8-1/2" Ring Gear, beam type solid 4x4 front drive axle during the 1977 model year. The new axle was available for higher speed gear ratios than was the Dana Spicer Model 44 front axle which GM continued to use for certain ratios until 1981. Although the differential parts are totally different, the 1977 to 1981 GM Dana 44 and the GM 10 Bolt front axles share a lot of common parts from the axle u-joints out to the hubs. The GM 10 Bolt front axle was used on Chevy and GMC 1/2 ton and 3/4 ton 4x4 pickups from 1977 to 1987 and on Blazer/Jimmy, and Suburban SUVs from 1977 through 1991.
Axle Identification
     

Click Here to Enlarge Image		 Front Cover: Oval with 10 Bolts. Unlike the Dana 44 Diff Cover, the GM 10 Bolt Cover does not have any flat sides.  
  Suspension: Leaf spring  
  Ball Joints: Pressed in Steering Knuckle, nuts at top.  
     
     
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Axle Assemblies and Axle Housings
  Sorry, No Axle Housings or Axle Assemblies in Stock at this time!  
     
     
     
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Axle Shafts and Axle Slingers
     

Click to enlarge		 QU40221 Outer Axle Shaft for 1977 to 1991 Chevy, GMC Corporate GM 10 Bolt Front Axle is a genuine original equipment outer axle stub shaft for all GM 10 Bolt front axles in 1977 to 1991 Chevy Blazers, GMC Jimmys, and Suburbans, plus Chevy, GMC 4x4 1/2 ton and 3/4 ton Pickups .
QU40284 Right Inner Axle Shaft for 1977 to 1991 Chevy, GMC Corporate GM 10 Bolt Front Axle is a genuine original equipment Right Inner axle shaft for all GM 10 Bolt front axles in 1977 to 1991 Chevy Blazers, GMC Jimmys, and Suburbans, plus Chevy, GMC 4x4 1/2 ton and 3/4 ton Pickups.
QU40222 Left Inner Axle Shaft for 1977 to 1991 Chevy, GMC Corporate GM 10 Bolt Front Axle is a genuine original equipment Left Inner axle shaft for all GM 10 Bolt front axles in 1977 to 1991 Chevy Blazers, GMC Jimmys, and Suburbans, plus Chevy, GMC 4x4 1/2 ton and 3/4 ton Pickups.
QU40058 1977-1991 GM 10 Bolt Outer Axle Shaft Slinger

acts both as a crud deflector and a sealing surface on open knuckle axles.  Replace anytime they are dinged, bent or badly corroded.
     
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Axle Shaft Inner Oil Seals and Seal Kits
     
QU40055 Inner Axle Shaft Oil Seal with integral axle shaft guide for all 1977-1991 GM 10 Bolt Solid Front Drive Axles.
  QK4811 Front Inner Axle Shaft Seal Installer Kit for GM 10 Bolt Axles fits 1977½ - 1991 All K and V Series ½ Ton and ¾ Ton and Full Size Blazers and Jimmys with GM 10 Bolt Front Axles. Kit includes Press Screw Assembly, Axle Seal Installer, Thrust Plate, and 2 Inner Axle Seals.
     
Axle Universal Joints
We offer three different Universal Joints for your hard working 1977 to 1991 Chevy or GMC 4x4 SUV or Truck with a GM 10 Bolt solid front axle. All are good, reliable products, but different manufacturing techniques and seal types will have a major influence on the ultimate life of the joint. Our most popular choice is our TK40712 cold-forged, non-greaseable, original equipment replacement U-Joint. The wear-resistant cold-forged cross and superior sealing make it the best choice for both low maintenance and long life. QU40754 and QU90007 have hot-forged crosses. They are greaseable through a flush fitting threaded into one of the caps. With good maintenance and quality lubricant like our Pyroplex® Plus Grease, these joints will last and last. Click on the Part Number Links to see our individual product pages for more info.
Link to Vehicle Make or Category Links
TK40712 Torque King® Premium Non-Greaseable Axle U-Joint for 1977-1991 GM 10 Bolt Front Axles Original equipment type universal joint with Premium Cold-Forged cross and superior pressure-type seals.

QU90007 Greaseable Axle U-Joint with Rubber Seals for 1977-1991 GM 10 Bolt Front Axles Value priced with Hot-Forged cross and flexible rubber seals.
QU40754 Greaseable Axle U-Joint with Metal Backed Seals for 1977-1991 GM 10 Bolt Front Axles with Hot-Forged cross and metal backed rubber seals.
     
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Ball Joints
     
QU40187 Original Equipment Ball Joint Set for 1977-1991 GM 10 Bolt Front Axles are the current production original equipment, factory lubed,

Upper and Lower Ball Joints with hardware used by GM on every 1977-1991 4x4 they made with a GM 10 Bolt solid beam front axle.
     
     
     
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Brake Parts
     
     
     
     
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Differential and Pinion Bearings (Individual)
All bearings are not created equal for fit or durability, so we only stock first class, long lasting, Timken® Differential and Pinion Bearings for your GM 10 Bolt front axle. Timken® was and is a a major original equipment supplier of top-notch bearing components to GM. Since I first started rebuilding axles in the mid 1970's, I have found Timken® Bearings to be the most consistent in relation to the published dimensions of any bearing on the market which makes rebuilding an axle right the first time a WHOLE lot easier! Link to our GM Web Page Index
QU50604 Timken® Outer Pinion Bearing Cup for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
QU50605 Timken® Outer Pinion Bearing for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
QU50404 Timken® Inner Pinion Bearing Cup for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
QU50405 Timken® Inner Pinion Bearing for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
  QU50653 Timken® Differential Side Bearing Cup for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
QU50448 Timken® Differential Side Bearing for 1977-1991 Chevy, GMC 8.5" 10 Bolt Front Axle.
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Differential Bearing and Seal Kits
     
QU50580 Basic GM 10 Bolt Differential Bearing and Seal Kit with Timken® Bearings includes Pinion and Differential Bearings and Bearing Cups, Pinion Seal, Crush Sleeve, Pinion Nut, Gear Marking Compound and RTV Sealant.
  TK4030 Torque King® GM 10 Bolt Front Axle Differential Bearing and Seal Kit with Timken® Bearings includes Pinion and Differential Bearings with Bearing Cups, Pinion Seal, 2 Inner Axle Shaft Seals, Crush Sleeve, Differential Cover Gasket, Pinion Nut, Gear Marking Compound and RTV Sealant.
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Differential Parts
     
  QU30103 Differential Cross Shaft Lock Bolt is a genuine original equipment bolt with factory applied theadlocking compound.
     
     
     
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Front Axle Service Kits
Doing a Front Axle service on your truck is the best way to find problems before they get serious. By cleaning and inspecting all the components you can see and correcting issues such as leaking inner axle shaft seals, rusty u-joints, worn bearings, etc. in the early stages.
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  TK4033 Torque King® Front Axle Service Kit includes the seals, gaskets and small parts that are normally replaced when doing a Front Axle Preventative Maintenance job.
     
     
     
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Hubs and Hub Parts
Over the entire 15 year production life of the GM 10 Bolt 8.5" beam type front axle, only two hub and rotors were used, a 6 bolt version for 1/2 ton models and a 8 bolt version for 3/4 tons. The hub driving parts however are a different story. For 1977-1979 Spicer Plastic Dial Hubs were used on trucks with NP205 transfer cases and solid steel hub drive gears equipped vehicles with NP203 full time transfer cases. Spicer hubs came on all 1980 trucks. I believe 1981 models all used Warn M248 plastic dial hubs, but both my memory and the GM parts books are a little vague on the issue. In 1982 GM started using automatic locking hubs. Auto hubs of different designs would continue to be used right through 1991. Warn M248 plastic dial hubs might be found as factory equipment on some work trucks from 1982-1991, but they were also the hub of choice for replacing the often unreliable auto hubs. The auto hub reliability did improve over the years, but a great many of them failed within 5 years.
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QU40154 Hub Cam Body for Spicer Plastic Dial Internal Mount Hubs is a new old stock (NOS) genuine Spicer replacement part for original equipment Spicer Lockout Hubs used on1977-1980 GM 10 Bolt front drive axles.
     
     
QU40050 Spicer Tapered Hub Spring for Spicer Plastic Dial factory hub-locks or full time drive gears.
QU40035 Hub Spring Plate fits between the QU40050 hub spring and the outer wheel bearing cup on 1977-1980 GM 10 Bolt front drive axles equipped with internal mount, Spicer lock out hubs or full time drive gears.
QU40558R Reconditioned 10 Tooth Axle Shaft Gear for Spicer Plastic Dial Hubs these are good used reconditioned gears with a Black Oxide coating for corrision protection. This is the later design, coarse tooth gear used in in the GM 10 Bolt for 1979-1980 (and perhaps a year or two later).

QU40559R Reconditioned 10 Tooth Hub Drive Gear for Spicer Plastic Dial Hubs these are good used reconditioned gears with a Black Oxide coating for corrision protection. This is the later design, coarse tooth gear used in in the GM 10 Bolt for 1979-1980 (and perhaps a year or two later).

QU40032 Axle Shaft Snap Ring is a genuine original equipment part for 1977-1991 GM 10 Bolt 4x4 front axles with manual locking hubs.
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Manuals and Technical Information
     
TSB4715 Front Wheel Bearing Service 1977½-1991 GM Full Size SUV's. 1/2 Ton, and 3/4 Ton Trucks with Manual Locking Hubs Replace or repack the Front Wheel Bearings on your Chevy Blazer, GMC Jimmy, 1/2 Ton or 3/4 Ton Truck yourself. This TSB give you complete coverage in both text and photos to help you service your wheel bearings and manual locking hubs. Includes step-by-step Service Procedures, Torque Specs, Adjustment Values, Tool Numbers, and Lubricant Recommendations.
     
     
     
     
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Miscellaneous Parts
     
  QU30104 GM 10 Bolt Front Differential Cover Gasket is a replacement gasket for the original cut paper gasket used by GM.
     
     
     
     
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Pinion Seals and Pinion Yokes
     
QU30106 Pinion Seal for GM 10 Bolt Front Axles is a new original equipment quality flanged pinion seal for all 1977-1991 GM 10 Bolt front axles.
     
     
     
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Ring and Pinion Kits
     
     
     
     
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Small Parts
     
QU50598 Pinion Nut for GM 10 Bolt Front Axles fits 1977-1991 full size Chevy and GMC 4x4s.
  QU30003 GM 10 Bolt Pinion Washer fits between the pinion nut and pinion yoke on all 1977-1991 full size Chevy and GMC 4x4s.
QU30035 GM 10 Bolt Pinion Preload Crush Sleeve fits 1977-1991 full size Chevy and GMC 4x4s.
     
     
     
     
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Spindles and Spindle Nuts
1977-1991 GM 10 Bolt Front Axles use a double spindle nut set with a lockwasher for front wheel bearing adjustment and retention. The inner and outer nuts are the same for all years, but the Lockwasher was changed in 1982 when automatic locking hubs were introduced. The Inner Nut has a pin that engages with one of the holes in the lockwasher. The Outer Nut is a jam nut.
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QU40004 Inner Spindle Nut with Pin for 1977-1991 GM 10 Bolt 8.5" Front Axle threads on the spindle and fits against your outer wheel bearing to provide correct wheel bearing end-play.
QU40060 1977-1981 Spindle Lock Washer for 1977-1981 GM 10 Bolt 8.5" Front Axle locks your QU40004 Inner Spindle Nut in position when properly installed. The inner tab is an anti-rotation device that engages in the spindle slot.
QU40429 1982-1991 Tabbed Spindle Lock Washer is a genuine original equipment part for GM 10 Bolt (Chevy/GMC) front drive axles. The tabs on this washer acted as anchor points for automatic locking hubs. You will also find this washer on 1982-1991 trucks with manual hubs.
QU40031 Outer Spindle Nut for 1977-1991 GM 10 Bolt 8.5" Front Axle is tightened against your QU40060 Spindle Lock Washer to keep the it in place and it acts as a jam nut effectively locking both spindle nuts and the washer together.
QK4727 1977-1981 Spindle Nut Kit includes one each of QU40004 Inner Spindle Nut, QU40060 Spindle Lock Washer, and QU40031 Outer Spindle Nut.
QK4770 1982-1991 Spindle Nut Kit includes one each of QU40004 Inner Spindle Nut, QU40429 Spindle Lock Washer, and QU40031 Outer Spindle Nut.
  QU40313 GM 10 Bolt Front Spindle for 1977.5-1991 Chevy, GMC full size 4x4s is a genuine original equipment replacement part for Blazer, Jimmy, K10, K15, K1500, V1500, K20, K25, K2500 V2500, 4x4s with GM 10 Bolt Front Axles.
     
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Spindle Bearings and Seals
The dead spindle design of the 1977-1991 GM 10 Bolt front axle uses a needle bearing to support the outer axle shaft. To protect the bearing and control axial thrust, a 4 piece set consisting of an Axle Shaft Slinger, Large V-Seal, Small V-Seal, and Thrust Washer was used. We have both Kits and individual exact replacement Dana-Spicer Spindle small parts for your hard-working 1977-1991 Chevy or GMC 4x4.
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QK4734 Front Axle Shaft Spindle Bearing Set fits 1977 to 1991 GM 10 Bolt front axles. One bearing is pressed into each spindle to support the outer axle shaft.
QU40056 Small Spindle to Axle Shaft V-Seal is a genuine original equipment 1-5/16" ID Rubber V-Seal that is installed in your spindle between QK4734.5 Spindle Bearing and QU40070 Spindle Thrust Washer.

Fits 1977-1991 GM 10 bolt open knuckle front 4x4 drive axles.
QU40070 Axle Shaft to Spindle Thrust Washer is a genuine original equipment plastic thrust washer that controls axial thrust between your outer axle shaft and spindle. Fits 1977-1991 GM 10 bolt open knuckle front 4x4 drive axles.
QU40071 Large Axle Shaft to Spindle V-Seal is a genuine original equipment 2.25" ID Rubber V-Seal that seals between your axle shaft and spindle. Fits 1977-1991 GM 10 bolt open knuckle front 4x4 drive axles
QK4739 Spindle Seal Kit services both sides on your 1976-1977, Ford F250 Crew Cab 4x4 with the Dana 60 front axle.
QU40228 Spindle Bearing and Seal Kit services one side on your 1976-1977, Ford F250 Crew Cab 4x4 with the Dana 60 front axle.
QU40058 1977-1991 GM 10 Bolt Outer Axle Shaft Slinger

acts as both as a crud deflector and a sealing surface on open knuckle axles.  Replace anytime they are dinged, bent or badly corroded.
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Steering Knuckles
     
     
     
     
     
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Steering Linkage Parts
     
     
     
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Tools
     
QT1165 Inner Front Axle Shaft Oil Seal Installer for GM 10 Bolt Front Axles is used to install QU40055 original equipment inner axle shaft oil seals seals on 1977-1991 GM 10 bolt solid front axles. Use with QT1133 Press Screw and QT1186 Thrust Plate.
QT1133 Front Inner Axle Shaft Seal Press Screw Assembly for GM 10 Bolt Front Axles.  Use with QT1165 Seal Installer and QT1186 Thrust Plate to quickly and easily press QU40055 Inner Axle Shaft oil seals in your GM 10 Bolt 4x4 front axle.
QT1186 Seal Installer Thrust Plate for Dana 30 and GM 10 Bolt Front Axles is used with QT1133 Press Screw and QT1165 Inner Axle Seal Installer to install the inner axle shaft oil seals in your GM 10 Bolt front axle.
QT1801 Bearing Cup Installer for Inner Wheel Bearing Cup on all 1977-1991 GM 10 Bolt Front Axles.
QT1802 Bearing Cup Installer for Outer Wheel Bearing Cup on all 1977-1991 GM 10 Bolt Front Axles.
QT1504 Wheel Seal Installer for all 1977-1991 GM 10 Bolt Front Axles.
QT1100 Series Driver Handles are used in conjunction with our seal and bearing cup installers.
QT1012 Spindle Nut Socket for all 1977-1991 GM 10 Bolt Front Axles.
QT1025 Universal Spindle Nut Socket for all 1977-1991 GM 10 Bolt Front Axles.
QT5500 Wheel Bearing Packer takes the mess out of packing wheel bearings, plus it minimizes the chances of getting contaminants mixed with your wheel bearing grease. The QT5500 Bearing Packer does an absolutely beautiful job of forcing grease between the individual bearing rollers. The easiest and most efficient way to repack the front wheel bearings on your GM 4x4!
QT1023 Triple Thread Universal Spindle Puller Use with any 5/8" fine thread slide hammer to quickly and easily remove those rusted in front wheel bearing spindles on your GM 10 Bolt Front Axle. without damage! Essential for servicing axle u-joints, king pins, spindle bearings, inner axle seals, and differentials on 1977-1991 GM 10 Bolt Front Axles. Also works on most Dana 50IFS, Dana 44, Dana 30, Dana 27, and Dana 25 front axles.
QT1200 Tie Rod Separator allows you to remove the separate tie rod and drag link ends without wrecking the seals or screwing up your steering linkage ends.
QT9018 5 Pound Dead Blow Hammer is just about the first tool you will reach for to do a multitude of jobs on your Dodge Ram. From seating differentials to removing rusted on wheels, the ability to apply persuasive force without damaging the reluctant part will make you wonder how you ever lived without this essential tool.
     
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Wheel Bearings and Seals (Individual)
All the GM 10 Bolt front axles used the same wheel bearings and wheel seal. It does not matter if you 4x4 is a Blazer, Jimmy, 1/2 ton or 3/4 ton, all models with GM 10 bolt front axles use the exact same bearings and seal. Link to Vehicle Make or Category Links
QU50091 Inner Wheel Seal for all 1977-1991 Chevy, Blazer, GMC Jimmy, 1/2 ton and 3/4 ton K-Series 4x4s with GM 10 Bolt Front Drive Axles.
QU50447 Timken® Outer Wheel Bearing Cup for all 1977-1991 Chevy, Blazer, GMC Jimmy, 1/2 ton and 3/4 ton K-Series 4x4s with GM 10 Bolt Front Drive Axles.
QU50448 Timken® Outer Wheel Bearing for all 1977-1991 Chevy, Blazer, GMC Jimmy, 1/2 ton and 3/4 ton K-Series 4x4s with GM 10 Bolt Front Drive Axles.
QU50446 Timken® Inner Wheel Bearing Cup for all 1977-1991 Chevy, Blazer, GMC Jimmy, 1/2 ton and 3/4 ton K-Series 4x4s with GM 10 Bolt Front Drive Axles.
QU50412 Timken® Inner Wheel Bearing for all 1977-1991 Chevy, Blazer, GMC Jimmy, 1/2 ton and 3/4 ton K-Series 4x4s with GM 10 Bolt Front Drive Axles.
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Wheel Bearing and Seal Kits
     
  TK4715/TK4743 Torque King® Wheel Bearing Kits for 1977-1991 GM 10 Bolt Front Axles Do the job right the first time with premuim quality parts and installation tools custom made for the job. TK4715 Master Kit includes 4 Timken Bearings with Bearing Cups, 2 Wheel Seals, Bearing Cup Installers, Wheel Seal Installer and Driver Handle. TK4743 Parts Only Kit includes the same great parts but no tools.
     
     
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