I'm looking to find info on how or where I could buy a long travel kit for my 1975 cab and a half power wagon. I know they probably don't make them, so i was wondering if anyone knew or had any ideas on how to make one. Initially trying to make it a crawler/mud truck.

That's leaf springs front and rear isn't it? Simply adding a lift will give you more travel.

For suspension kits that are Dodge-specific, check out Jungle's products over at ramchargercentral.com.

Otherwise start looking at 3 & 4 link builds over at pirate4x4.com