U-Joints

mcreyaufmiller · April 4, 2005

I had to replace my U-Joints today so I went to the parts store and got the listed parts. After removing the old ones and preparing to install the new ones, I find that they are not the right ones. I went to another store and they tried to give me the same ones as the first store. Being as I had a old one in my pocket this time, I pulled it out, looked at the guy and told him they were wrong. He told me they were right because the computer said so. I insisted that we try a different part so we looked up a RCLB with a one piece drive shaft and they were the right parts. So my question is that if I have a two piece driveshaft that calls for one part number, how could I have u-joints for a one piece shaft?

BBSilverado · April 4, 2005

I had to replace my U-Joints today so I went to the parts store and got the listed parts. After removing the old ones and preparing to install the new ones, I find that they are not the right ones. I went to another store and they tried to give me the same ones as the first store. Being as I had a old one in my pocket this time, I pulled it out, looked at the guy and told him they were wrong. He told me they were right because the computer said so. I insisted that we try a different part so we looked up a RCLB with a one piece drive shaft and they were the right parts. So my question is that if I have a two piece driveshaft that calls for one part number, how could I have u-joints for a one piece shaft?

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I don't know why that is but it would make sense that the pinion yoke and tranny yoke would still be the same weather the truck has a one or two piece shaft, so the U-joints should be the same. I could seen them being different from 1/2 tons to 3/4 tons and so forth.

99-2door · April 4, 2005

the 2 piece driveshaft has the same tranny and pinion u-joint as the 1 piece. But the u-joint for the carrier bearing joint is different than the others.

snoman · April 4, 2005

I had to replace my U-Joints today so I went to the parts store and got the listed parts. After removing the old ones and preparing to install the new ones, I find that they are not the right ones. I went to another store and they tried to give me the same ones as the first store. Being as I had a old one in my pocket this time, I pulled it out, looked at the guy and told him they were wrong. He told me they were right because the computer said so. I insisted that we try a different part so we looked up a RCLB with a one piece drive shaft and they were the right parts. So my question is that if I have a two piece driveshaft that calls for one part number, how could I have u-joints for a one piece shaft?

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It would not be the first time that auto store manuals were wrong. GM does not use that many different Ujoints in production so it would make sence that the joints are the same in both drive shafts to simplify inventory and control costs in production.