Can anyone tell me the correct length for the shocks for a 1984 XJ550 ? 
 
 
I've seen shocks advertised for this model but they are the same length as the ones I've got - 335mm. 
 
The problem is that with center stand down, both wheels are on the ground and the bike isn't too stable.  I had one 23 years ago and I'm sure the rear wheel was a good inch off the ground when on the stand. 
 
Thanks 
 
Steve