Driveshaft U-joint question
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Driveshaft U-joint question
I think I have stock driveshaft and stock rear end in my 1973 Vette (TH400). I have now during winter rebuild another rear end which has different gearing in it. I do not know from what year and type of vette the another rear end is (might be originally from an manual one).
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by Vesa
I think I have stock driveshaft and stock rear end in my 1973 Vette (TH400). I have now during winter rebuild another rear end which has different gearing in it. I do not know from what year and type of vette the another rear end is (might be originally from an manual one).
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
And are they available with grease fitting or without(stronger)?
Drifting
Joined: Oct 2003
Posts: 1,426
Likes: 1
From: VetteMOD
St. Jude Donor '05-'07
Not positive, but a 73 may have a 1310 series driveshaft (ujoints 3.500 across w/1.062 caps). Later C3's had 1330 series (3.625 across and 1.062 caps). Do a search for Spicer (it may be spicer.com) and see if they list a number for a 1310/1330. Any parts house should be able to get it.
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by BBShark
Not positive, but a 73 may have a 1310 series driveshaft (ujoints 3.500 across w/1.062 caps). Later C3's had 1330 series (3.625 across and 1.062 caps). Do a search for Spicer (it may be spicer.com) and see if they list a number for a 1310/1330. Any parts house should be able to get it.
Melting Slicks
Joined: Sep 2004
Posts: 2,655
Likes: 19
Good timing.
I just pulled my differential on a 1968 4 speed, 327. The differential had been pulled and it had hd, bolted caps (from either a big block or an automatic car).
I was planning on changing the driveshaft U joint but wasn't sure which one it was. How do I tell what U joint I need?
Gary
I just pulled my differential on a 1968 4 speed, 327. The differential had been pulled and it had hd, bolted caps (from either a big block or an automatic car).
I was planning on changing the driveshaft U joint but wasn't sure which one it was. How do I tell what U joint I need?
Gary
Pro
Joined: Jun 2005
Posts: 725
Likes: 1
From: FL.
Originally Posted by Vesa
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
This may help, I swapped the muncie 4 out for a 6sp in my 69. The original slip yoke was 1310 series. The new tranny slip yoke was for 1330 series, so I went to a driveshaft shop they ordered me conversion u-joint Part number [1-0134HD] and I went on using my original driveshaft.
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Race Director
Joined: May 2005
Posts: 10,674
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From: Millington Illinois
St. Jude Donor '08-'09
Originally Posted by Vesa
I think I have stock driveshaft and stock rear end in my 1973 Vette (TH400). I have now during winter rebuild another rear end which has different gearing in it. I do not know from what year and type of vette the another rear end is (might be originally from an manual one).
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
I heard that in some years/types of cars the rear end driveshaft yoke is different size - thus it might turn out that in need a conversion U joint (the other line of the X is around 1/3" longer than the other line). Maybe the manual and automatic cars have had different size of U Joint.
Do you know this? Where can you buy those conversion U joints from? Are they different or is there only one size available that should do my problem...
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by Van Steel
63-67 All - 1310 / 5-785
70-68 Auto - 1330 / 5-790
70-68 4 spd - 1310 / 5-785
71-79 All 1330 / 5-790
70-68 Auto - 1330 / 5-790
70-68 4 spd - 1310 / 5-785
71-79 All 1330 / 5-790
And what are these numbers 5-790? Tried to see your web page and at least doestn´t seem to be your product number....
Last edited by Vesa; Mar 29, 2006 at 12:23 AM.
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by 63mako
Been there done that. They are available at almost any auto parts store for about the same price as a standard U-Joint. Isn't it wierd that they increased the size of the U-joint just as they eliminated the high horsepower engines!!
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Originally Posted by 69vettester
This may help, I swapped the muncie 4 out for a 6sp in my 69. The original slip yoke was 1310 series. The new tranny slip yoke was for 1330 series, so I went to a driveshaft shop they ordered me conversion u-joint Part number [1-0134HD] and I went on using my original driveshaft.
Premium Supporting Vendor
Joined: May 2000
Posts: 4,312
Likes: 70
From: Clearwater FL
Originally Posted by Vesa
Do you sell the conversion one as well? If so what is your part nr?
And what are these numbers 5-790? Tried to see your web page and at least doestn´t seem to be your product number....
And what are these numbers 5-790? Tried to see your web page and at least doestn´t seem to be your product number....
I don't have the conversion joints listed. I sell maybe 5 or 6 a yr. Not very common. 5-790 is the Spicer part number.
