I have a 2000 ranger and i was wondering if a dodge ram turbocharger could in any way be used on that?
Technically, any turbo setup would technically work with a certain amount of wrench time.
I'd advise against it. Unless you plan to upgrade the engine as well to handle an appropriate boost level. Most engines will be OK everyday drivers on 3-5psi, but even that amount of boost can have damaging effects. To really make use of a turbo, you'd have to run at least 8psi to get good performance for your buck. A lot is involved here, not to mention a solid, custom tune afterward to get all the components, including the vehicle computer, working in harmony with each other.
If you have a 4cyl engine (as you didn't specify which engine you had), and really want a turbo unit, check around online, even Ebay for ideas, but I'm sure you can still buy new or used low boost Mitsubishi turbos at a reasonable price. A Dodge Kit will run upwards of $4K, and a lot of the parts won't fit your vehicle to begin with. I'm no expert by any means, but have done my fair share of work on many different vehicles and this project will be a difficult one.
Also, you'll want to consider upgrading the transmission (even a manual one!) to handle the added torque. If you can find all the mechanical upgrades first, then I'd shop around for a turbo, or possibly even a kit if it's a reasonable price before you slap one on there and it costs you an extra $3-4K in wear and tear parts. The rear differential should be OK, but be sure to change the axle fluid and clean everything down. I suggest refilling with synthetic but that's more of a personal choice.