The cook tops are usually easy enough to replace once the screws are removed along the front edge. The top will hinge up along the back then the elements can be moved from the old top to the new top. I can locate the part number for your range if you like, but the model number you provided does not show in Frigidaire's library. Double check the number and get all the letters at the end to ensure you get the correct part.

The part number I found from Frigidaire is 318154603 but a quick search of my normal local and Internet part suppliers either show it no longer available, part number doesn't exist, or requires special attention, ie., we don't know. So some looking around yourself and see what you can find. If you look for a used appliance store in your town, they are a good resource of some older parts that are still in good shape. Hope this helps.

I checked a few other models that had similar element layouts and their part numbers came back the same as yours. That is why I suggested the used route because you need the same element pattern and element mounts to ensure it will fit correctly. If you can see that top and make a comparison, you may find something similar that will work for you. The current production 30" ranges similar to yours have a top (AP3960212) that use a different method of mounting the elements along with how they attach to the range chassis. I don't know how different it would look when setting on the range, but you would need to purchase the new mounting brackets to mount the elements. It may work, but you may want to look at one in person before placing an order.

ya that one won't work

i checked the page for that model of range and the elements are in a different place or can we move our elements

Elements can be adjusted, but it depends on the if you have room in the wire harness, They can be moved to another position, but you may also need to move the infinite switch that provides the electrical current. The greater problem you may have is your range has an oven vent the is on the right rear, while all the newer (say last 6 years) have the vent on the left running under the control panel. So I don't see any of the new cook tops working for you.