1987 Ford F-250 4-wheel drive front driver side hub clicking

I have an old 87 F-250 with manual locking hubs. I was driving on the beach the other day with the 4-wheel drive engaged and I noticed a clicking/popping noise coming from the front driver side wheel while I was pressing the gas. When that happened I lost the power and traction I needed to drive in the sand. The rear wheels were digging into the sand but the front wheels were not moving. I got out to make sure the hubs were locked and they were. I'm thinking that the locking hub failed and needs fixed or replaced. And if one fails, does that have any influence on the other one?