Toyoyta steering box splines

[KitRacer]

Does anybody know what size the splines are on a solid axle toyota power steering box? It measures .690 and has 36 splines. A 36 spline .625 joint was way to small, and a 48 spline .750 joint was way to big. What else is there? I dont think that a 36 spline .750 joint would be much smaller, but I couldnt find one to try. Any help is appreciated.

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[BlueCoyote]

What are you try to swap over to?
If you need spare arms, let me know, I have several of the PS boxs.

[KitRacer]

I am using the box instead of a $1200 power rack. The box was free to me, and I was able to get very low bumpsteer with my pitman arm design. The problem is I cant attach my steering shaft to it because nothing aftermarket fits on there, and the stock one is hideous, and visable outside the body.
FWIW I was able to achieve almost 21" of travel with this steering box and stock 5 lug toyota spindles with stock lower balljoints and upper 3/4" misaligned heims. Total cost fro the front end is at 10 3/4" x 3/4" heims

[ZTFab]

I would assume that since it's a Toyota box that it's a metric size........

.690 is almost 18mm (.700+-), so I would guess that it's an 18mm? jm2c

[DuffcoDan]

11/16x36

I have ordered them direct from borgenson universal joints (east coast) as well as flamming river (phoenix, AZ). probably around $75-80 each.

[knucklemeat]

is this on a toyota pickup? if so ,would love to see pics,that's a bunch of travel on ball joints/stock spindles. i am currently building an 89 2wd and looking for ideas for the front.