Steering box splines?
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Elder User
Joined: Jan 2009
Posts: 576
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From: Oneida, NY
Steering box splines?
wondering if anyone has replaced there steering box and knows which one it is. NAPA says either 32 splines or 36 splines..... Ford dealer says there is only one and the 4x4 makes the difference. so of course they wouldn't tell me how many splines it had because they new i wasnt gonna buy it from them... so 2002 f-350 4x4 steering box 32 or 36 splines?
Postmaster
Joined: Jul 2004
Posts: 3,156
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From: Yuba City, CA.
Count the number of splines with the tip of a ballpoint pen, running it over the splines and counting the "peaks". The sector shaft has 4 big splines 90* from each other, count the splines in between two of them and multiply by 4. I know an early 99' I just helped to lift has a 32 spline, and my 01' has a 36.
PS- How have you been HawaiianPSD, truck still riding good?
PS- How have you been HawaiianPSD, truck still riding good?
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Mountain Pass
Joined: Jan 2005
Posts: 225
Likes: 0
From: Keaau, Hawaii
Thanks brother, looks like my 01 is 32 then.
I'm good man! Truck is good, gonna change the springs out one of these days and time for shocks too!
How you been?
I'm good man! Truck is good, gonna change the springs out one of these days and time for shocks too!
How you been?
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Senior User
Joined: Nov 2007
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From: Inverness Fl
i just went through this when converting mine to a 4x4, all mono beam (4x4 and the straight axle 2wd suspension in the 450's and up) use the 36 spline, but with the i beam fronts most came with 32 spline boxes and a few with 36.
Fleet Mechanic
Joined: Jun 2009
Posts: 1,866
Likes: 8
From: Fleetwood, PA
yea i think the pre 2000 7.3's are the lesser of the two splines, i figured this out when i did my lift kit and had to replace the drop pitman arm.
Postmaster
Joined: Jan 2009
Posts: 2,544
Likes: 4
From: Suffolk, VA
Only way to know for sure is to count them in a 90 degree area and multiply by 4 as said above. But when I researched the red head box I found the 4x4 trucks are the ones with 36 splines, the 2wd most likely have 32.
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