67 K10 U-joint problem. PLEASE HELP! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kurts704 · 11-02-2011, 07:10 PM

Just finished lifting my 67 K10 stepper 4 inches and put in axles out of an 87 Blazer. Trying to mate the shafts to the axles. The yolks coming out of my axles are 3.75 inches, the ones on my old axles are 3.25. The old axles had u-bolts going through the yolk, the newer axles have staps with bolts. The u-joint ends are the right diameter, but are too short for the new yolk, only catches half the cap and there is nothing to hold them in from working outward. No clips. Do I need different caps? Different joints? Or will my old yolks fit in the new axles? Help! Everything else is done and I want to drive it!

kurts704 · 11-02-2011, 07:15 PM

Tried posting a pic. Hope it worked.

mstrav1973 · 11-04-2011, 05:45 PM

If you cant swap out the yolks from the old axles to the new ones, you may have to have a driveline shop rebuild the end to match the newer axles. Maybe somone else can chime in on this.

Matt

kurts704 · 11-04-2011, 07:40 PM

Thanks for the info. Got it figured out. Got two u joints with different sized ends. Hopefully I'll be rolling tomorrow.
Posted via Mobile Device

lukefalls · 11-05-2011, 01:32 AM

Call WFO Concepts in California. Give them the measurements and there is a conversion u-joint. Otherwise, they have a used yoke or shaft for you.

11-02-2011, 07:10 PM	#1
kurts704 Registered User Join Date: Apr 2011 Location: Holbrook, NY Posts: 60	67 K10 U-joint problem. PLEASE HELP! Just finished lifting my 67 K10 stepper 4 inches and put in axles out of an 87 Blazer. Trying to mate the shafts to the axles. The yolks coming out of my axles are 3.75 inches, the ones on my old axles are 3.25. The old axles had u-bolts going through the yolk, the newer axles have staps with bolts. The u-joint ends are the right diameter, but are too short for the new yolk, only catches half the cap and there is nothing to hold them in from working outward. No clips. Do I need different caps? Different joints? Or will my old yolks fit in the new axles? Help! Everything else is done and I want to drive it! __________________ 67 K10 stepside (driving project) 06 Tahoe (family truckster) 84 vette (fast toy) 00 Harley Fatboy (2 wheel toy) 67 Mustang (project)

11-02-2011, 07:15 PM	#2
kurts704 Registered User Join Date: Apr 2011 Location: Holbrook, NY Posts: 60	Re: 67 K10 U-joint problem. PLEASE HELP! Tried posting a pic. Hope it worked. Attached Images __________________ 67 K10 stepside (driving project) 06 Tahoe (family truckster) 84 vette (fast toy) 00 Harley Fatboy (2 wheel toy) 67 Mustang (project)

11-04-2011, 05:45 PM	#3
mstrav1973 Registered User Join Date: Oct 2008 Location: Meridian, Idaho Posts: 321	Re: 67 K10 U-joint problem. PLEASE HELP! If you cant swap out the yolks from the old axles to the new ones, you may have to have a driveline shop rebuild the end to match the newer axles. Maybe somone else can chime in on this. Matt __________________ 72 chevy k-10, swb, auto, 35's, rally's, posi, 4" lift, 2.5" old style 40 series flows with headers and crossover pipe and some other stuff!!

11-04-2011, 07:40 PM	#4
kurts704 Registered User Join Date: Apr 2011 Location: Holbrook, NY Posts: 60	Re: 67 K10 U-joint problem. PLEASE HELP! Thanks for the info. Got it figured out. Got two u joints with different sized ends. Hopefully I'll be rolling tomorrow. Posted via Mobile Device __________________ 67 K10 stepside (driving project) 06 Tahoe (family truckster) 84 vette (fast toy) 00 Harley Fatboy (2 wheel toy) 67 Mustang (project)

11-05-2011, 01:32 AM	#5
lukefalls Registered User Join Date: Feb 2011 Location: Fairbanks, Alaska Posts: 86	Re: 67 K10 U-joint problem. PLEASE HELP! Call WFO Concepts in California. Give them the measurements and there is a conversion u-joint. Otherwise, they have a used yoke or shaft for you.



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