i recently just bought a 94 trooper. runs pretty well, except much oil is leaking from the left side valve cover. so i opted to change the gasket myself. i am changing the problem side first, before tackling the more difficult side. but the valve cover will not come out, after i have taken off all the screws and bolts i can see. the front side of the cover readily comes off, but there is something binding in the rear, preventing the cover to come off. is there a special way, such as a notch, where i would have to push forward, or hidden bolt i should look for? i even took out the 2 screws in the back of the valve cover that were holding in the horseshoe shim. but to no avail.