It depends on if you are towing or not too, but here are the results for your vehicle for the products we carry:
http://www.shockwarehouse.com/index....cted_year=1978
The Monroe Sensatrac and KYB Gr2's are similar in price, about $135 for all 4. They are both twin tube design and are very economical.
The next step up would be the KYB Gasadjust, they are monotube and may be too stiff for your liking.
We a 5% discount to forum members as well as free shipping for all orders $95 or more.
I'd be happy to answer any questions you have.