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#1 |
Registered User
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
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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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'67 C20 LBW |
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#2 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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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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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#3 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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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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#4 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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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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#5 | |
Registered User
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
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Re: Driveshaft diameter
Quote:
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'67 C20 LBW |
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#6 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
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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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-Scott- |
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#7 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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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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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#8 | |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: Driveshaft diameter
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#9 |
Registered User
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
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Re: Driveshaft diameter
Now this all makes sense. The truck I pulled it from was originally a 3 on the tree truck, converted to a T10.
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'67 C20 LBW |
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drive shaft, driveline, driveshaft |
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