Well, yes and no. As you were given a suspended sentence, the conviction will always be shown on standard or enhanced DBS checks
. The good news, though, is that your conviction is spent, so it will not be shown on a basic DBS check. That covers most jobs, as a basic DBS check is for any job that isn't eligible for a standard or enhanced DBS check. This doesn't mean that you can't apply for jobs that are eligible for a standard or enhanced DBS check, it just means that you would have to disclose the conviction if you do apply, and there are some employers, unfortunately, who don't understand the disclosure system, or just don't care, and have a "clean DBS" policy, even though a spent conviction won't affect their insurance, and a conviction from 40 years ago shouldn't be used to judge someone. You can't really find out which employers are bad in that respect until you disclose, but if you stick to jobs that have only a basic DBS check, you won't have to disclose anything.
Robert Lightfoot, former head of NASA, said it succinctly in his parting speech in April 2018: Protecting against risk and being safe are not the same thing ... [W]e must move from risk management to risk leadership. From a risk management perspective, the safest place to be is on the ground. From a risk leadership perspective, I believe thats the worst place [we] can be.