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Old 11-16-2018, 09:05 AM   #1
rhhiii
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Drive Shaft and Half Shafts

I am breaking down the drive shafts and halfs shafts. I got the U Joints out using a rented U-Joint remover. Do the half shafts have to be balanced?



On a side note, O'Reilly tools has an excellent tool rental program. They have a great selection of tools and they are basically free to rent.
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Old 11-16-2018, 01:27 PM   #2
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http://garage.grumpysperformance.com...36/#post-80097

http://garage.grumpysperformance.com...36/#post-80097

http://garage.grumpysperformance.com...27/#post-43685

https://www.zip-corvette.com/84-96-c...-u-joints.html

http://garage.grumpysperformance.com...80/#post-38597
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IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Old 11-16-2018, 01:49 PM   #3
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I read through all of the threads but I can't find anything in the links about balancing the half shafts so I guess its not needed.
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Old 11-16-2018, 02:11 PM   #4
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rebalancing is rarely required
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IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
Old 11-19-2018, 06:37 PM   #5
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What brand of Universal Joints do you guys recommend? I see my local stores have Spicer and my local drive shaft repair shop uses Neapco. I abosolutely require that it be American made.
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Old 11-19-2018, 06:50 PM   #6
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Quote:
Originally Posted by rhhiii View Post
What brand of Universal Joints do you guys recommend? I see my local stores have Spicer and my local drive shaft repair shop uses Neapco. I abosolutely require that it be American made.

Dana Spicer & Neapco are both very Good.
Used by the top drag race driveshaft builders like Mark Williams, Strange Engineering, & Denny's Driveshaft.


Earlier this year Dana Spicer was the very last Made in the USA U-joints.
They may have switched production to overseas.


Vintage Precision brand U-joints are very good & made in the USA. Hard to find New Old Stock local & online.


I used Moog 1350 series U-joints in my 87 Corvette aluminum 1/2 shafts earlier this year.
Dana Spicer 1350's were $80 each from Summit Racing & all others were as high as $150 each.
Moogs are holding up...Made In Mexico.
I bought the Brute Strength series.
I hit 150 mph at least 50 times this year in my Vette.
No U-joint failures.
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Old 11-20-2018, 04:18 AM   #7
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After looking around the forum I think I’m going to try the Spicer 5-1350x for the half shafts. They are on summitracing.com for about 19.00 each. The comments say they are Made in USA.
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Old 11-20-2018, 06:02 AM   #8
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I have been told the ones without the Zerk fittings are stronger. You will need to balance out the benefit of ease of greasing with strength. If you are going to be driving hard I would recommend the one without. My $0.02
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Old 11-20-2018, 07:25 PM   #9
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Go with the solid spicers and don't look back. I have installed a lot of them and the only ones that broke were on our car that dead hooked and sheared them in 1/2. For street car they should last a very long time.

One word of caution,the flanges can not be even tweaked or the joints will bind and you won't get the clips in the grooves.
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Old 11-20-2018, 08:44 PM   #10
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Alot of U-joints share the same Cross main body.
Each are Hollow or Rifle drilled bored.
Just the Cross is not final drilled for a Grease Zerk.

Something to look into.

Last set of True Drag Race U-joints Solid forged and zero rifle bored cross body I have seen are old TRW Lakewood Racing U-joints.
On my 70TA driveshaft.
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Old 02-13-2019, 08:30 AM   #11
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Arrow Half Shaft U-Joint Install

I ended up getting the Dana Spicer U-Joints. The boxes are stamped made in the USA!



4 x Half Shaft 5-1350X
2 x Drive Shaft 5-1330X




I got the U-Joints installed using a press tool. The half shafts had no issues with the retaining clips. They seated without much effort. Getting the U-Joint pressed into the flange was a bit tricky. The retaining clips did not want to seat so I must have tweaked them when I was removing the old U-Joints. I had to use a dremel with a cutting wheel to clean up the grooves enough to get the clips to seat firmly. I think this particular car has had the U-Joints replaced at least 4 times. It looks like someone took a hammer to the half shafts and flanges at one point. Some of the grooves were damaged. I will probably purchase new flanges if I ever have to do this again.
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Old 02-13-2019, 08:44 AM   #12
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Half Shaft with U-Joint installed

Half Shaft with U-Joint installed and the press tool.
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Old 02-20-2019, 03:29 PM   #13
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I did my halfshafts years ago. Recently noticed the Ujoint on the driveshaft at the tranny is bad as there's play.

My understanding is the halfshafts don't need to be rebalanced, but that the driveshaft would need to be rebalanced.

I've been doing research, but I find some say you have to and some say you don't have to remove that crossmember brace thing when you pull the driveshaft. I guess it's one of those things you'll have to find out when you get under it and try pulling the shaft out. I'm hoping the crossmember brace doesn't have to get pulled. Though I have had for some time a small tranny leak out the rear shaft.
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Old 02-22-2019, 08:55 AM   #14
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Balancing

I called my local driveshaft shop, Drive Line Service of Jacksonville, they said that GM didn't balance the shafts originally. They would balance the half shafts but it was only the weird corvette guys that wanted them balanced! LOL.

The process to balance the drive shaft uses heat + water and welding small weights and that will damage the paint or powder coating (in my case). I was told that I would have to repaint after the work was done.

Colt,

What cross member brace are you referring too?
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Old 02-22-2019, 10:21 AM   #15
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You do not have to balance 1/2 shafts. Driveshaft yes.

Not sure what bracket you are referring to.
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