Hi, I'm a new member and it seems like there is good information here so I thought I'd ask your advice. I'm sure this topic has been covered many times and I did search and find some info, but here is my specific situation. I have a 2000 access cab, basically stock except for 285/70-17E load range BFG's. I'm going to put a pop up camper on my truck for 6-8 mos. of the year. It weighs about 900 lbs. loaded. I had it on all of last summer without any helper springs and it did ok- sat a little low and lightly bottomed out on big bumps. I plan on doing a decent amount of wheeling so I don't want to overdo it with the helpers and loose the articulation. Shocks will be upgraded too. I'm hoping to get as close as possible to a stock unloaded truck in terms of ride height and articulation. I know it will behave differently, but hopefully you get my point. Currently I'm looking at Hellwig 1250, 1535, and 991. Sorry about the long winded explanation but I wanted to be thorough. Thanks much.