Shocks & Springs

[vwbrain]

Hi all members,
This is the first post as I am new here.
I had replaced all front rear chocks and springs (standard from brickwerks) on my T25 1987 2WD 7 seater, new Powerflex bushes fitted underneath the van. brake callipar cleaned, new brake pads fitted. all Upper Ball Joint+Track Rod End are good clean,
The problem is when its empty it does not drive smoothly, and it is wobbly when turning around or over humps.
when the van is loaded with passengers, bags it drive very smooth and lovely.
I have checked the spring plates there is no gape between upper plate and spring.
I am thinking may be the spring a bit shorter.
Any help will be appreciated.