If I buy a parts only 1986 Trooper will the parts interchange with my '90

Like what parts?

I know the grill and round headlights will

Engine, tranny, driveline, axels, suspension, frame, electrical, fuel system - no to all of it - most body panels and glass yes. - about the headlights - if you switch the whole grille and headlights you may get by with it, but you can't just replace a few parts.

Engine, tranny, driveline, axels, suspension, frame, electrical, fuel system - no to all of it - most body panels and glass yes. - about the headlights - if you switch the whole grille and headlights you may get by with it, but you can't just replace a few parts.

Thanks ... you just saved me a lot of trouble!

do you have a torch and a welder?