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Steering coupler difference for manual or power steering

woody3037

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Anybody know how to tell the difference between a power or manual steering coupler? I have a couple laying around an don't know what they came off from. Thanks for any help. Here a couple of pics of one of them. Hopefully that helps.

PXL_20230209_225947298.jpg


PXL_20230209_230044004.jpg


PXL_20230209_230108206.MP.jpg


PXL_20230209_225939682.jpg
 
On my 70 Road Runner the manual steering box spline is 11/16x36.
the power steering box I’m installing is 5/8x36.
 
Yup, manual box spline is the larger of the two
 
Sold the one in the pic but might have another. Will have to look.
 
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