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Side yokes - which one do I need

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Old Oct 6, 2013 | 02:31 PM
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Default Side yokes - which one do I need

Hello!
I have a 69 427ci BB and want to replace the side yokes at the diff. I searched at Willcox and figured out, that there are side yokes in a "normal" version and ones are "haevy duty".
Can anybody tell me the difference and which one do I need to buy?

Regards, Günther
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Old Oct 6, 2013 | 03:06 PM
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The 'normal' have two u-bolts and two nuts to retain the u-joints.



The 'heavy duty' have two forged caps and four bolts to retain the u-joints.



Most BB Corvettes came from the factory with the heavy duty type.
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Old Oct 6, 2013 | 04:29 PM
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Gunter, Mikes right! In most cases big block would have caps instead of the u-bolts. But a quick look under the car or post up a rear end picture and I'd be happy to tell you.

Willcox
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Old Oct 6, 2013 | 04:44 PM
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Günther,

Do not forget to buy the pinion shaft also. Chances are that it is damaged and can immediately begin damaging the ends of your new side yokes if you do not replace it. Also the special long bolt that holds the pinion shaft in may also need to be purchased due to I have seen many that are either cracked at the end or bent and getting ready to crack.

The pinion shaft is the shaft that goes through the center of your carrier and that your side yokes push against, spin on and stop on.

These two parts can be serviced and to do not have to remove the carrier.

For what it is worth...all differentials that I replace the side yokes in get a new pinion shaft and or bolt.

DUB
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Old Oct 6, 2013 | 04:57 PM
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Thank you!
Hmm, that´s curious. My Corvette is MN but it has the u-bolts, not the caps. Can this also be stock???
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Old Oct 6, 2013 | 06:10 PM
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Originally Posted by Günther-C3
Thank you!
Hmm, that´s curious. My Corvette is MN but it has the u-bolts, not the caps. Can this also be stock???
Yes..
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Old Oct 6, 2013 | 07:04 PM
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Get the cap style. They're stronger and swap right in.
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Old Oct 6, 2013 | 07:23 PM
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Originally Posted by Günther-C3
My Corvette is MN

What does this mean?
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Old Oct 6, 2013 | 08:20 PM
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Originally Posted by Mike Ward
What does this mean?
GOSH Mike!.......Matching Numbers I thought all you NCRS types knew the secret code
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Old Oct 6, 2013 | 08:39 PM
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Thanks- that's the one term the 'NCRS types' don't use.
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Old Oct 7, 2013 | 12:44 AM
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I checked out again and I have the haevy duty version, sorry for the confusion
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Old Oct 7, 2013 | 11:18 AM
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If you plan on keeping and driving your car you should get away from stock ore even HD yokes. They are not made from quality metal.

I bought mine from MidAmerica when they were only $550 a pair Now about $369 each

My stock HD yokes were completely gone before I had 50,000 miles on my car. I've had these in my rearend for about 20 years and every time I have the rear end apart for a new $800 toms posi unit or a gear ratio change the yokes still look brand new.

Corvette High Performance Threaded Side Yoke.

http://www.mamotorworks.com/corvette...-303-3599.html


Hey I will be in Kuchl probably in April. I will stop and say hello
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Old Oct 7, 2013 | 11:46 AM
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WOW! talk about inflation! Those Mid America Vette side yokes are the International Axel side yokes I used to buy for $175 a side with the caps thankfully I have 2 sets couldn't afford them now. When your dropping the "hammer" at the drag strip starting line with sticky slicks at over 3000RPM, they bring one less worry to my mind! Lifetime guarantee!

Gunther if your not drag racing, I have some good stock Big Block/LT-1 side yokes around $200 for a pair........or I'll trade for certain reddily avalible VW T3 Syncro parts.
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Old Oct 9, 2013 | 02:58 PM
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Thanks for your support guys!
@gkull: when you will be here in Austria and how long will you be here? You are welcome everytime but in April my Corvette will not be on the road, it´s too soon. Anyway, let me know!

Regards, Günther
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Old Oct 9, 2013 | 04:01 PM
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Originally Posted by Günther-C3
Thanks for your support guys!
@gkull: when you will be here in Austria and how long will you be here? You are welcome everytime but in April my Corvette will not be on the road, it´s too soon. Anyway, let me know!

Regards, Günther
I have not finalized my plans. I always planned to retire before age 55. So I have decided to retire this March 2014. I'm just going to do contract work on race cars and do what every I please. So if I want to spend a few months in Europe I will. I have a caretaker/maid to take care of my house even if I was gone for a year.

I have friends and family in England and Spain and of course my wife in down the road from you in Austria.

I can order parts for you and send them as birthday presesents!
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Old Oct 9, 2013 | 04:35 PM
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Originally Posted by gkull
I can order parts for you and send them as birthday presesents!
Haha, yes that´s a good idea! So my wife doesn´t know I have payed for them.
As a birthday present I would like a ZZ572
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Old Oct 9, 2013 | 04:54 PM
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Originally Posted by Günther-C3
Haha, yes that´s a good idea! So my wife doesn´t know I have payed for them.
As a birthday present I would like a ZZ572
I'm talking import tax exempt packages

The ZZ572 is a tall deck big block and I think it might have trouble fitting under your hood.
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To Side yokes - which one do I need

Old Oct 11, 2013 | 05:40 PM
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Originally Posted by DUB
Günther,

Do not forget to buy the pinion shaft also. Chances are that it is damaged and can immediately begin damaging the ends of your new side yokes if you do not replace it. Also the special long bolt that holds the pinion shaft in may also need to be purchased due to I have seen many that are either cracked at the end or bent and getting ready to crack.

The pinion shaft is the shaft that goes through the center of your carrier and that your side yokes push against, spin on and stop on.

These two parts can be serviced and to do not have to remove the carrier.

For what it is worth...all differentials that I replace the side yokes in get a new pinion shaft and or bolt.

DUB
Hey Dub!
I know the pinion shaft, but don´t know the "special long bolts". Maybe you have a pic of it?
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Old Oct 11, 2013 | 05:52 PM
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"Carrier center pin lock bolt"

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Old Oct 11, 2013 | 06:06 PM
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Hmm, can´t find it at Willcox. Can you help me out with a partnumber?
And do I need this sealing also?
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