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08-25-2009, 12:50 PM
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#1 |
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Registered User
Join Date: Mar 2007
Location: south carolina
Posts: 247
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Steering Box Spline?
I need to order the universal joint from the box to steering shaft. I have a GM 525 manual box. I've tried counting splines,measured the shafts several times . The universals come in various sizes ( 3/4" , 5/8", 9/16" ) & splines ( 26 , 30 , 36 ) What is the correct dia. & spline? The box came from a '76 chevy truck . I also have a box from a '64 corvette that has the same shaft & spline ,Thanks in advance
Last edited by Knothead; 08-25-2009 at 01:53 PM. |
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08-25-2009, 05:28 PM
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#2 |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Steering Box Spline?
I believe the truck box is 3/4-36. You can check by measuring the diameter and counting the splines in 1/4 of the diameter x 4.
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1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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08-25-2009, 05:50 PM
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#3 |
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Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Steering Box Spline?
If you have a 525 then you have an 86 or later box and it should be 3/4-36. If you have a 1976 box it should be a 122 with a 3/4-30, The 64 vette is a 122 and has a 3/4-30. The 525 and 122 look the same except for the spline. It was changed to 525 in 86 when the spline changed to 3/4-36
Last edited by dwcsr; 08-25-2009 at 05:57 PM. |
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08-25-2009, 08:04 PM
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#4 |
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Registered User
Join Date: Mar 2007
Location: south carolina
Posts: 247
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Re: Steering Box Spline?
Thanks Kevin & Dave ,where the shaft comes out of the box it measures 3/4 but tapers down at the spline. I get a 11/16 measurement there. Trying to count splines is a different story,never get the same count twice!!! I'm going to try a 3/4 30 STEVE
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08-26-2009, 02:25 PM
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#5 |
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Registered User
Join Date: Mar 2007
Location: south carolina
Posts: 247
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Re: Steering Box Spline?
I don't know where Kevin came from? Sorry about that Patrick,It's hell to get old!
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08-26-2009, 05:59 PM
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#6 | |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Steering Box Spline?
Quote:
I also checked my steering set up at lunch. My box is a 74 3/4 ton 4WD unit and it is 3/4 -36. That also seems to be the standard for after market stuff like Borgsen.
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1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project Last edited by OrrieG; 08-26-2009 at 06:03 PM. |
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08-27-2009, 01:26 AM
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#7 | |
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Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Steering Box Spline?
Quote:
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08-27-2009, 12:08 PM
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#8 |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Steering Box Spline?
It's power so that explains the difference.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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