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Topic: Balance Halfshafts?

in Forum: C3 Driveline Components


Balance Halfshafts?

Posted: 3/29/05 3:12pm Message 1 of 4
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Fort Wayne, IN - USA
Joined: 1/17/2005
Posts: 179
Vette(s): '75 Stingray Coupe - 350 Bored, Edelbrock Alum. Heads, Performer Intake/ Carb., Harland Sharp Roller Rockers, MSD Ign., XE Comp. Cam, Pete Jackson Gear Drive, Hooker Headers, Side Pipes, TH400, 3000 RPM Stall and 3.55 Rear Gears
I am going to replace the half shaft U-joints , do most people balance the half shafts? The local drive shaft rebuilder says usually there is no need but the drive shafts even from the factory sometimes are not perfectly balanced.


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Balance Halfshafts?

Posted: 3/29/05 6:33pm Message 2 of 4
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Batavia, IL - USA
Joined: 3/27/2003
Posts: 622
Vette(s): 496 big block, Dragvette 6 link, 12 bolt IRS conversion, Going for fastest Vette IRS E/T
well it is true that half shafts dont spin as fast as your drive shaft such as 3.55 less as you driveshaft if you got a 3.55 diff. Tires still need to be in good balance or else they produce noticeable vibrations at higher speeds. So your halfshafts should still be balanced in my opinion.


Balance Halfshafts?

Posted: 3/30/05 7:22am Message 3 of 4
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Clearwater, FL - USA
Joined: 2/8/2005
Posts: 67
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1/2 Shafts don't need to be balanced. They are too short. If you put new u-joints in, you can bolt it right back in the car. If you shaft has a bing ding in it than I would consider getting them balanced and/or replaced.

Also you need to reinforce the 1/2 shaft flange when you are pressing out and pressing in the new u-joints. If you do not, you will bend the flange and you'll be out another $75 or so. You can either fab up a 1/2" thick plate or you can use your spindle flange. If you use your spindle flange, be sure to re-torque the spindle nut to 100 ft/lbs and throw a cotter pin back in the spindle.



Balance Halfshafts?

Posted: 3/30/05 11:23am Message 4 of 4
Former Member
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Batavia, IL - USA
Joined: 3/27/2003
Posts: 622
Vette(s): 496 big block, Dragvette 6 link, 12 bolt IRS conversion, Going for fastest Vette IRS E/T
I stand corrected.


in Forum: C3 Driveline Components


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