Update....
Well.....after soaking the sleeve for several days in Evaporust......almost success. The un-used threads were MUCH better. I'll try and post some pics later. I actually could get the ends to thread almost all the way in now......but they did expand the sleeve a bit as they went in as the threads were still not perfect.
I actually feel that with perhaps using the GregS suggestion of slotting the ends of the male tie rod threads - to clean out the threads a bit more - it would be "okay" . But just "okay".....so I didn't try that...
Instead...I broke down and ordered some taps and dies. Having to come from China - the only place I could find them. That will likely take a couple of months at least. But then the job will be done 100% properly. I like that....
Since I was ordering anyway...i ordered both taps and dies in both LHT and RHT so I could clean up the threads on all parts of sleeve and tie rod ends. And what the heck...I also ordered M14 x 1.5 and M12 x 1.25 taps and dies...to be able to clean up the threads on all the other suspension components like bolts and ball joints. And even the appropriate die handles. I even ordered 2 of everything......
i'm quite sure.....most X1/9s have the same issue...you just dont know it yet...until you decide to rebuild the suspension as part of a restoration or refresh. I would think rather pointless to rebuild the suspension and then not be able to adjust the toe !!
Theory is.....there will soon be 2 kits of all the taps and dies you would ever need... to.be available for rental or simply just buy one kit from me and resell them to the next guy who needs them. Taps and dies you will likely only use once so we can just pass them along to the next guy. And end up only costing you a few bucks.....
As for the Evaporust...well I'm happy to report the stuff is simply amazing !!! I tried it on a variety of rusty Fiat parts. VERY pleased with the results. See the pic below of some results. Note the untouched wheel spacer for comparison. Most really rusted parts came out like almost new. They look better in person than in the pics. So easy to use...no more wire brushing/wire wheels/sanding/blasting. Just soak the part in a bucket or jar of Evaporust. It does in reality take a bit longer than they suggest...I found 48 hours for most parts. But hey....we are dealing with Fiat rust here.
I actually found that on the really rusty stuff....it worked best to first clean them a bit first - remove grease and stuff - and just totally submerge the part in a pan of Evaporust. After 24 hours or so.....remove the part and give it a quick wire brushing and then rinse it well in water. Then submerge back in the Evaporust for another 24 hours. Repeat as needed.
The stuff is even non-toxic. You can stick your hand in it. Does not smell bad...but there is a wee bit of odor to it. Seems to work better and quicker the warmer it is.
In the USA , seems to be available at Harbor Freight. Maybe Home Depot too.
In Canada....available at Princess Auto. Regular $35 Canadian a gallon.....but on sale now until Sunday only for $24.99.!!!!