You need a puller like this one
. Autozone probably has one available in their tool loan program. It also shows that same tool will also remove the seal. For installation of the seal, it shows this tool
will be needed.
Remove crankshaft sprocket with crank timing gear tool No. T74P-6700-B, or equivalent Fig. 13.
Remove crankshaft oil seal with front cover seal remover tool No. T74P-6700-B, or equivalent Fig. 14.
Install a new crankshaft oil seal with cam and auxiliary shaft seal replacer tool No. T74P-6150-A or equivalent.
Install crankshaft sprocket.