I need advice from anyone who has used any of the 2 following products.

http://store.summitracing.com/partde...D25812&FROM=MG
http://store.summitracing.com/partde...D57205&FROM=MG

or

http://store.summitracing.com/partde...D25250&FROM=MG
http://store.summitracing.com/partde...2D9511&FROM=MG

My sister just started a wine importing company and she will be driving a Chevy E2500 Cargo van transporting the wine from Corpus Christi,Tx to other various locations. On her first trip, I loaded up 90 cases and that weighed down the rear preety good. I am looking for something that will help raise the rear so that I may pack the van full.(Full would probably be around 200 cases.) She was complaining on the first trip that it seemed that the van wanted to fishtail, and I would assume that is because of all the weight in the rear. Any help is greatly appreciated.

 

From what I've read, the airbag setup is better.

 

I second Wandell. I think the airbags are better than helper springs.

 

Thanks guys I really appreciate it. I just ordered the air bag set up, so I am really hoping that helps. She has to make another trip to Dallas at the end of the week. Hopefully it will level it out, cause I have to fill it up completely.