Driveshaft concerns/questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sport/Truck · 10-31-2010, 05:44 PM

I went to the local drive-line shop and ended up purchasing another carrier bearing for the time being.
He was telling me that that a one-piece drive shaft would need to a large diameter as the skinny ones tend to whip/flex in the middle.
He also explained that the carrier bearing allow the shaft to move back and forth like the slip joint (like mention above). But one problem is when you lower the truck your putting allot of stress on the center bearing.
So I'm going to try to determine how much too long my shaft is and see if it's alright with the current setup.

I'm watching my neighbors house while he's away and I took a peak at his 72 step side. It all original and has a one-piece. Could this be because it's a manual transmission?
Should I just leave a note thanking him for the drive shaft?

10-31-2010, 05:44 PM	#1
Sport/Truck Sierra Grande Club Join Date: Jan 2007 Location: New Mexico USA Posts: 2,433	Re: Driveshaft concerns/questions I went to the local drive-line shop and ended up purchasing another carrier bearing for the time being. He was telling me that that a one-piece drive shaft would need to a large diameter as the skinny ones tend to whip/flex in the middle. He also explained that the carrier bearing allow the shaft to move back and forth like the slip joint (like mention above). But one problem is when you lower the truck your putting allot of stress on the center bearing. So I'm going to try to determine how much too long my shaft is and see if it's alright with the current setup. I'm watching my neighbors house while he's away and I took a peak at his 72 step side. It all original and has a one-piece. Could this be because it's a manual transmission? Should I just leave a note thanking him for the drive shaft? __________________ 1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.



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