How different are the frames from 2wd to 4wd? The B52 kit from DIY4X
http://diy4x.com/cart/index.php?rout...product_id=122
seems like a good way to convert the front suspension to 4wd if they are similar where the spring perches mount. I know that you can mount 73-91 Chevy lift springs on those (they are 48" long) if you use the frame mount end hole closest to the axle. The axle will end up forward about an inch though.