Driveshaft diameter
Is there a difference in the driveshaft diameters of a 1/2 or 3/4 ton? I picked up a '69 c10 with a much smaller diameter shaft than my '67 c20.
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Re: Driveshaft diameter
How fast do you plan to run it? I have seen a 1/2 ton ,2 pc shaft to almost to 130? The shaft is built for my longhorn(pretty much 3/4 ton spec)...she runs smooth, @ a tick over 140 ...crazyL
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Re: Driveshaft diameter
I think 1/2 ton's are smaller, But as crazy longhorn pointed out these driveshafts are strong, Ive put 500HP through them with no problem, Even broke a pinion on a 9", But not a driveshaft.
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Re: Driveshaft diameter
The smaller diameter driveshafts typically use the carrier bearing that hangs from the top of the trailing arm crossmember. Those carrier bearings are junk IMO. They just don't hold up once you start upping the HP and Torque going thru them. I always go with the heavier duty carrier bearing that bolts to the bottom of the crossmember as you should have in your C20. The C10's were also available with that same HD driveshaft and carrier bearing.
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Re: Driveshaft diameter
My last 1/2 ton had the large drive shaft with the horseshoe style carrier bearing. My current 1/2 ton has the smaller shaft with the other style. So I guess they could have either.
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Re: Driveshaft diameter
It has been my experience with the C10's that the trucks with the SM420 4 speed typically had the HD driveshaft and the trucks with 3 speeds or auto trans had the lighter duty driveshaft.
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