You could get CJ5s without a tailgate or with that bottom hinged tailgate.
It was not until the Wrangler arrived that the side hinged tailgate was introduced.
If you really wanted one they can be added from a Wrangler. I have one on Puthijeep as the tub was changed to a later one but it is a PITA.
BagusJeep lives in Bali.
1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE