A 5"TT might - and I emphasize might - be possible. I have a full 2"TT and still have a few inches of droop left now that I have longer shocks. I have noted that I seem to have more droop than others who do the TT so there are obviously some individual vehicle tolerance parameters that allow different limits.
However, I guaran-damn-tee you there is no droop at all left by 5" and I second Rick's opinion that something is gonna hurt soon. Also the ride would be horrendous with all downtravel removed from the suspension.
You have at least a 100mm bolt. I also cannot remember the exact length of mine but yours may even be 120mm to do what you did. Either one is a long bolt, now subjected to massive pressure from the excess stress of the new extended length from the fulcrum point. Make sure you have the highest grade metric bolt equal to Grade 8 english or stronger (I believe it is called 10.9 in metric grade, but may be wrong). It will be operating fulltime on the very ragged edge of a CV joint's 22 or 23 degree angle limit. And the upper control arm will be sitting and hitting on the frame constantly. Carry a spare CV, torsion bar, and adjuster bolt along with the necessary tools or risk getting stranded at any time. How many miles have you run this mod? Is it all on the street?
Alec, you have to grind and round the bolts like drw18 did in order to mate to the female concave rest that the bolt presses against. Buy a $1 Ford torsion adjuster bolt and notice the rounded end. I had to buy a longer bolt to get a full 2" TT and the first one I didn't grind. I just tried to screw it in, and it promptly broke in half from the pressure. This was a bolt of the highest metric grade. The threads will try to tap into the iron of the stop and something will break. It is made to swirl in smoothly, and that requires a rounded end. I took the next one I bought and rounded it off with a grinding wheel and then dabbed some synthetic grease on the newly-rounded end before cranking it into place.