No it'd just be something else not a Jato, there's no real way to utilize it's suspension parts with the 4wd stuff. You _could_ if your a machinist and machined your own parts, anything is really possible but it's not a simple conversion.

You must have just gotten your Jato and notice it's all over the place in dirt under throttle so you want 4wd. ST's are wild in the dirt, you'll learn throttle management then it won't be so bad for ya....also the stock tires have little to no grip on any surface they pretty much suck, once ya replace those you'll gain more traction and all, you can also gear it different so it's not as snappy on takeoff's.