Front Constant Velocity Driveshaft Parts for 1977.5 to 1991 Chevy and GMC Full Size 4x4s
Parts for GM front CV Shafts. Page is under construction, more parts will be added soon!
Driveshaft Identification
     

Click to Enlarge		 CV MOUNTING FLANGE: The QU40761 mounting flange on Saginaw Double-Cardan CV Joints as used with original equipment 1977-1991 Chevy and GMC front CV shafts can be identified by the following features:
5" outside diameter, 4 bolt Round Flange mates to the Transfer Case Output Flange using 4 QU10806 7/16" Bolts that fit through holes in CV Flange and thread into your Transfer Case Output Flange. Note: If you have a CV mounting flange is half-round, your driveshaft has an aftermarket Spicer type CV head.		  

Click to enlarge 		CV CENTER YOKE: The Saginaw CV Center Yoke has squared off ends. The 1-1/8" diameter holes for the u-joints have a 3-1/4" center to center dimension. Plastic injected into grooves machined in the yokes and u-joint cups retains the factory installed universal joints. TK40725 and QU40758 replacement universal joints are kept in place by spring steel C-Clips that fit in a groove machined on each u-joint cup. When installed, the C-Clips will be against flats machined on the inside faces of the yokes. Note: If you have CV u-joints with external snap rings, your driveshaft has either been through a major rebuild or it is an aftermarket replacement driveshaft assembly.  
     
     
     
     
     
     
Boots and Clamps
     
     
     
     
     
     
     
     
     
Constant Velocity Parts
n The now obsolescent Saginaw Double Cardan CV Joint used by Dodge on 1977-1991 Chevy and GMC full size 4x4 trucks was quite durable as long as the CV Centering Ball was greased every now and again. The simple Saginaw centering ball and socket is easier to grease, longer lasting and cheaper to repair than Spicer CV Ball that uses needle bearings especially under poor maintenance conditions. However the Spicer type CV can run at a greater angle.
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Click to enlarge 		QU40760 CV Center Yoke for 1977-1991 Chevy and GMC full size 4x4 front drive shafts. 
QU40761 Flange Yoke CV Sub-Assembly for 1977-1991 Chevy and GMC 4x4's has the QU50038 Yoke Liner and QU40752 Centering Kit spring, washers, shoes, and seal already installed. 
QU40851 Ball Stud Tube Yoke for 2" x 0.120" wall thickness tubing includes a angled grease fitting.
QU40831 Complete CV Head Assembly is the cheapest way to replace a completely toasted CV Joint.
QU40752 CV Joint Centering Kit includes, Hardened Steel Centering Ball, 3 Shoes, 2 Washers, Seal, and Spring. 

Please refer to QU40752 page for more details and ordering information.
QU40741 CV Joint Centering Parts Kit without CV Ball for Chevy and GMC 4x4 trucks with Saginaw Type Double-Cardan CV Joint. Kit includes: 3 Shoes, 2 Washers, Seal, and Spring. 
QU40828 CV Ball Seal replaces worn or damaged seal in your Flange Yoke. Included in QU40741 and QU407452 CV Parts Kits.
QU40833 CV Ball Seat Set is a three piece Ball Seat Shoe set that replaces replaces worn or damaged Ball Seat Shoes in your Flange Yoke. Included in QU40741 and QU407452 CV Parts Kits.
QU40837 CV Ball Spring replaces a worn or damaged spring in your Flange Yoke. Included in QU40741 and QU407452 CV Parts Kits.
QU40838 CV Ball Inner Washer a replaces worn or damaged Lower Seat Washer in your Flange Yoke. Included in QU40741 and QU407452 CV Parts Kits.
QU40839 CV Ball Outer Washer a replaces worn or damaged Upper Seat Washer in your Flange Yoke. Included in QU40741 and QU407452 CV Parts Kits.
QU40836 CV Dust Shield replaces a damaged or missing Dust Shield on your Ball Stud Tube Yoke. Needs to be Tack Welded on your Ball Styd Tube Yoke.
QU50038 CV Flange Yoke Liner replaces a damaged liner in your CV Flange Yoke.
QU40817 Hardened Steel Centering Ball is a press-fit on the Ball Stud Tube Yoke Centering Stud. Included inQU407452 CV Parts Kit.
Dan the Gear Man Tech Tip: The QU40817 replaceable hardened steel centering ball MUST be replaced if it shows any evidence of wear. Ideally, an expensive, specialized puller is used for removal, however you can remove the ball by carefully slitting it with a die grinder.
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Driveshaft Assemblies
     
     
     
     
     
     
     
     
     
Manuals
     
TM3000 Driveshaft Service Manual Order print or download versions of the complete manual or download individual chapters that cover all aspects of 4x4 and light truck driveshaft service.
     
     
     
     
     
     
     
Miscellaneous
     
PP14 Pyroplex® Protection ES Synthetic Grease provides extended service protection under the harshest on and off road conditions! This new NLGI #2 GC-LB grease is Hydro-Activated™ to become tackier when exposed to moisture. Offers superior corrosion and wear protection in a variety of environments. Provides excellent low and high temperature performance. Use to lubricate the CV Ball and Slip Yoke prior to assembly and for your greaseable universal joints.
S9978 Blue 242 Threadlocker is used on the bolt treads that attach your driveshaft to the transfer case and front axle.
S9975 Anti-Seize Lubricant will keep the CV flange from rusting to the transfer case output flange when applied to the male-female pilot that centers the shaft flange to the output flange.
QU40852 2" x 0.120" Wall Driveshaft Tubing for all 1977-1991 Chevy and GMC Full Size original equipment front CV Shafts.
     
     
Rebuild Kits, Premium
     
     
     
     
     
     
     
     
     
Rebuild Kits, Standard
     
     
     
     
     
     
     
     
     
Slip Stubs
     
   
     
     
     
     
     
     
     
Slip Yokes
     
   
     
     
     
     
     
     
     
Small Parts
n Often the difference between a so-so job and a great repair are in the details such as replacing worn-out small parts.
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QU10806 Grade 8 Bolt with attached washer.  Four of these special Bolts are needed to attach the driveshaft to the transfer case. Replaces  weak Grade 5 bolts previously used.
     
     
     
     
     
     
     
Tools
     
     
     
     
     
     
     
     
     
Universal Joints
     
TK40725 Torque King® CV U-Joint,  cold-forged, alloy steel, non-greaseable factory synthetic-lubed u-joints for the Constant Velocity Joint.  2 of these joints are used in the CV Joint (upper or transfer case end of shaft) on 1977-1991 Chevy and GMC full size 4x4's. 

QU40758 Heavy-Duty Greaseable CV U-Joint hot-forged, alloy steel, greaseable u-joints with metal backed seals for the Constant Velocity Joint.  2 of these joints are used in the CV Joint (upper or transfer case end of shaft) on 1977-1991 Chevy and GMC full size 4x4's. 

     
     
     
     
     
     
notes from above
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