If ya can get your hands on a 2.0 turbo set up from an Impulse, it's almost a direct bolt in. I believe the only modification to the 2.6 would be to add an oil line from the other side of the engine. I'm sure someone on here can give you all the specifics of the install. HTH

94 Trooper S, 3.2 SOHC, Auto, Aisin's, OME 912's, TBC, Indy 4x HD TRE, Tokico shocks, AR Outlaw II's 16x8, Bridgestone Revo's 265/75x16
89 Trooper S, 2.6, auto, work in progress