What they said above. CJ7's are longer than CJ5's.
CJ5's have the "S" door cutouts, the CJ7's are square.
1978 CJ-5, 304 V-8, T-150 trans, Dana 20 x-fer case, AMC 20 rear, Dana 30 front. Painless wiring kit,
fenderwell headers - dual exahaust, side exit. Still mostly stock (for now).