Different size differential pinion yoke
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Joined: Apr 2009
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Different size differential pinion yoke
Hello again,
I have a question about the different size differential pinion yokes in the 68-79 Vettes. I'll try to make this as clear as possible:
I've got a Keisler TKO 500 and Keisler driveshaft that came with the TKO 500 kit. This kit was running back to my differential and working fine until the differential gave out. I bought a rebuilt differential from a forum member here and I've installed it. Apparently my 1970 differential that I removed is the smaller pinion yoke (3.5 inches wide) with u bolts. The newly purchased rebuilt differential has the larger pinion yoke (4 inches wide) with straps. When I tried to install the drive shaft it was obvious that the ujoint in the rear of the Keisler drive shaft is not wide enough to fit the 4 inch pinion yoke properly. The cap size matches, but the ujoint is not wide enough. The ujoints in the drive shaft seem to be the 1310's for they measure just over an inch on the caps. What Spicer ujoint do I need to purchase to make my combo go together?
Thank you.
I have a question about the different size differential pinion yokes in the 68-79 Vettes. I'll try to make this as clear as possible:
I've got a Keisler TKO 500 and Keisler driveshaft that came with the TKO 500 kit. This kit was running back to my differential and working fine until the differential gave out. I bought a rebuilt differential from a forum member here and I've installed it. Apparently my 1970 differential that I removed is the smaller pinion yoke (3.5 inches wide) with u bolts. The newly purchased rebuilt differential has the larger pinion yoke (4 inches wide) with straps. When I tried to install the drive shaft it was obvious that the ujoint in the rear of the Keisler drive shaft is not wide enough to fit the 4 inch pinion yoke properly. The cap size matches, but the ujoint is not wide enough. The ujoints in the drive shaft seem to be the 1310's for they measure just over an inch on the caps. What Spicer ujoint do I need to purchase to make my combo go together?
Thank you.
Last edited by brando1118; Jul 17, 2011 at 11:26 PM.
Thread Starter
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Joined: Apr 2009
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OK,
I've been doing some research and hopefully someone more knowledgeable can chime in and verify what I'm thinking here:
I found this:
It's a combo 1310/1330 that is wider on the 1330 area, but the caps are all the same size. I thought there was a difference in cap size between the 1310/1330 ujoints. Anyway, would love to find a non-greaseable ujoint like this if this is the one I need. Would be happy just to find the right type of ujoint. Thanks again for the help.
http://www.dennysdriveshaft.com/p377...re+Information
I've been doing some research and hopefully someone more knowledgeable can chime in and verify what I'm thinking here:
I found this:
It's a combo 1310/1330 that is wider on the 1330 area, but the caps are all the same size. I thought there was a difference in cap size between the 1310/1330 ujoints. Anyway, would love to find a non-greaseable ujoint like this if this is the one I need. Would be happy just to find the right type of ujoint. Thanks again for the help.
http://www.dennysdriveshaft.com/p377...re+Information
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Joined: Dec 1999
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From: Forked River NJ
http://www.actionmachineinc.com/ujoi...ringguide.aspx
This might help some in ujoint measuring. As I recall mine were all 1330 ujoints. I have never had the pleasure of working on a 1310 pinion flange. there are as you have found hybrid ujoints that are a combination of both styles.
This might help some in ujoint measuring. As I recall mine were all 1330 ujoints. I have never had the pleasure of working on a 1310 pinion flange. there are as you have found hybrid ujoints that are a combination of both styles.
Thread Starter
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Joined: Apr 2009
Posts: 650
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Thank you G!
That link puts everything into perspective. I can see that the 1310 and 1330 ujoints have the same cap size. That was really messing with me. Now I understand it's all about the length from end to end and I imagine the full non-combo 1330's are more beefy material in the center of the ujoint. Don't want the greaseable ujoints. Got to find a non greaseable one.
Thank you very much!
That link puts everything into perspective. I can see that the 1310 and 1330 ujoints have the same cap size. That was really messing with me. Now I understand it's all about the length from end to end and I imagine the full non-combo 1330's are more beefy material in the center of the ujoint. Don't want the greaseable ujoints. Got to find a non greaseable one.
Thank you very much!
c3, corvette, diff, differential, differnces, dimensions, driveshaft, pinion, rear, size, sizes, vette, whats, yoke, yokes
