Need advice with power steering conversion

[thewrai6th]

My power steering conversion was going very well until I found out the rag joint is not the correct one for the power steering gearbox I bought, it's too small.
I measured the input shaft on the gearbox, and it is 3/4" (13/16" is too large). If I were to count the splines and keep counting across the flat spot, it would be 36 splines. If I stop counting it's 30 splines.

So, is the 3/4" 36 spline the correct rag joint for this gearbox? I can't find one locally, so I'm going to have to order it.

https://www.napaonline.com/en/p/PNB391038

[thewrai6th]

My best guess is Dorman 31011

[thewrai6th]

I found the 31011 locally and it doesn't fit. Too small. Not sure what to order at this point. Maybe it is 13/16" and not 3/4"

[Jrainman]

cant help you with spline count or part numbers , but you need to know what year and or part number of your gear box to get the correct rag joint .

the basic rule of thumb for this conversion is rag joint = year of gear box
and idler arm = year of your truck with power steering (not manual steering idler arm)

[stsalvage]

If you have your old one you can drill it out and put in the rebuild kit.If not need to find a junk yard or a guy that sells old parts he might have one that will be uses as long as its not messed up put it on and use it

[thewrai6th]

For the record, it's Dorman 31015, 13/16" 36 spline.
The PS gearbox has a 0.80" input shaft (Napa has input/output backwards on the website)
Thanks for the assistance