I used a regular 12 mm allen lengthwise and a 3/4 " shock bolt, double nutted for the 39 mm.

 

So how did you torque the 12mm to spec with a regular Allen key?

 

This is what I purchased; worked great.

 

When I was looking at either upgrading or changing the oil to SE version for a better front end suspension. People did say yes you get better front end response with the SE Oil, but upgrading the suspension would even be better. Changing the oil is half of the job, so I went the full route. Very Happy that I did and changed the sliders and cowbells at same time.