Keep in mind when loading down a 1/2 ton truck that the MAIN difference between the C10 & C20 is the REAR HUB BEARINGS which are of the "Full Float" design. That is to say there are two Opposed Tapered Roller, they take the weight of the load, unlike the 1/2 ton axles which the ROLLERS for the ONE axle bearing ride DIRECTLY on the AXLE!
The rollers have been known to eat axles IN TWO!
Also remember that trucks NEVER break down in the DRIVEWAY!
Happy Camping!