This is totally not the way to go about it. You're simultaneously;
1. reducing bump stop clearance
(leading to bottoming out after minimal/insufficient travel),
and
2. losing spring captivity at full extension
(how did you think that increasing the distance between the spring seats at full extension wasn't going to affect spring captivity..?)
I'm doing this at the minute and there's a lot to consider. PM me if you like for details?
Quote:
and would i have to get it engeeneered/QLD.?
Last I heard it was perfectly legal to modify suspension components by welding without any inspection at all. Have fun!