U Jount Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69GMCor70Chevy · 10-25-2007, 10:41 AM

I have a question on the U joints for my 69 (I have 1 long shaft with no carrier). Will I feel play/slop in the joint if it is bad? And if there is no play does that mean it is good?

The reason I ask is that I was experiencing what sounded like a semi's engine brake engaging when I let of the throttle. There was clunking a little as well and a vibration when I let of the throttle slightly. But when I took the shaft off last night the joints look pretty new (I have only had the truck a couple of months) and there is no play or slop.

10-25-2007, 10:41 AM	#1
69GMCor70Chevy Registered User Join Date: Jul 2007 Location: Greenwater Lake, SK Posts: 175	U Jount Question I have a question on the U joints for my 69 (I have 1 long shaft with no carrier). Will I feel play/slop in the joint if it is bad? And if there is no play does that mean it is good? The reason I ask is that I was experiencing what sounded like a semi's engine brake engaging when I let of the throttle. There was clunking a little as well and a vibration when I let of the throttle slightly. But when I took the shaft off last night the joints look pretty new (I have only had the truck a couple of months) and there is no play or slop. __________________ 68 Camaro - 327 Original Red on Red Car 69 GMC LWB - Built 350 a Blast To Drive 69 GMC LWB - "Green Machine" One Family Truck 70 Mercury Marauder - Future Project

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