yes an 08 85 SX, i lowered it 50mm and did some other mods to the hydraulics
the shock measured right between centres, the upper and lower mounts take the same bolts. only issue would perhaps be the lower mount not being quite long enough but it looked really really close.
now I wish I had of tried it for fit in my spare husaberg swingarm.
I think the shocks are the same from 06 up but you'd have to check.
husqy 510 on ktm talk converted his 2 piston WP to a 1 1/2 piston design, hes posted some pics too.
after much tinkering over the last 2 years though I think the major limiting factor with handling on the husaberg is the chassis.