Thanks for the reply. I would like to go all out on this van but its a RWD but dont plan to get rid of it. I just want a little lift to add bigger tires. And the shocks are at their end.
Are there any lift blocks you recommend?
Those Fox racing shocks you posted arent for 1500?
Any block will work, but make sure it is steel and not aluminum. Want to avoid any galvanic corrosion, especially if you live in a wet/humid area, or where they salt the roads. Also, make sure they are tapered, to help maintain your pinion angle. Lots of debate with straight cut or angled, but if you aren't going huge on your lift, it is not a huge deal. You will need new u bolts, but they can all be bought together.
Another option for you would be the suburban 2500 spring pack, which would give you your lift in the rear. Also an add-a-leaf is an option. But if you go that route try and get the longest leaf possible. Short ones will make the rear more jarring. If you do an extra leaf, it will allow you to use the stock U-bolts. You may consider this rather than blocks, depending on the age/mileage of the vehicle and how often it was loaded up.
As far as shocks go, the AWD 1500's used the 2500/3500 express shocks after they lifted the rear, due to their longer length. The rear shocks I referenced are for the 2500/3500 express. I would assume the fronts would work, but I would wonder about the valving being too stiff. To make it easy, just snag the WeldTec Fox setup.
And of course the easiest solution is just getting the complete kit with everything from WeldTec.
What gearing are you running, and what size tires are you planning?