Rear Differential Locker

There are different types of "locking" rear axles. Ford is now offering an optional "electronic" locker similar to the Eaton E-locker. This would be my preference.

Your class C will very likely have far more traction that your pickup because it has massively more weight on the drive wheels. I can back my motor home up my gravel driveway but my pickup won't go more than two feet up it backwards. In other words, your class C may have more traction without a locker than your pickup does with one. Good diff shops are few and far between and finding one to work on a motor home is even harder. I had to have diff work done on mine and the first two shops did less than desirable work. The third one was a hundred miles away and on the other side of an international boarder but their work was exemplary. You'll have more options if you can pull the diff yourself and haul it to a shop. Looks like East Coast Gear Supply has a few lockers to choose from.

I like the driver controlled rear electric locker on my F3fitty camper truck.

I like my Eaton Truetrac differentials.

My camper two campers ago was a chassis mount 10.5 Travel Queen on a 1975 C20 chassis in which I installed a Detroit in the 14b. It worked exactly as expected/hoped. In my opinion there is zero downside to a Detroit in that situtation, other than cost. It spent most of its life off road in the 1990s and it was a beast for 2wd. Loved it. Wouldn't trade that time for anything.

Prior RV was a 1984 era 24' class C which had a "G80" a.k.a. "Gov-Lock." GM's version of auto locker. Never went in anything rough but the overhang and width were such it might as well be open because if it went too far off the beaten path it would be stuck regardless of drivetrain. Never spun enough to engage the G80, not sure it even worked.

Current rig 2019 Ford based C. It is too pretty, and I'm too old, it will likely never go off road. Maybe gravel road...someday. All I know about is diff is it is 4.56, it is probably open and I'm OK with that.

My point is if you are going to use it, get a Detroit put in. No down side in my opinion, work great mud snow sand, 100% reliable and bulletproof.

I had a Eaton Truetrac put in my 2000 F250 and it made a world of difference. Highly recommended. Wish I had done it years earlier.

I had a Eaton Truetrac put in my 2000 F250 and it made a world of difference. Highly recommended. Wish I had done it years earlier.