[RockyMtnRay]

I heartily agree with the comments above about low-rated clutches (and transmissions) being standard equipment on 1/2 ton (or smaller) manual tranny trucks and SUVs. Unless the vehicle is equipped with a heavy duty clutch/tranny, it simply can't handle the inevitable slippage that happens when you first try to get moving with a heavy trailer, particularly on a steep grade.

I also heartily agree with Bill about automatics being better from a torque standpoint. One of the best things about an automatic is the fact that the torque converter provides around a 2X torque multiplication when you need it most (i.e. starting from a standstill).

For a given engine and axle ratio, an automatic will get a "rig" moving much better and with far less trauma to the drivetrain than will a clutch/manual tranny. Yes, once moving, there can be some advantages to a manual in terms of longevity, control, engine braking, efficiency, etc....but I happily traded that for the ability to easily start moving (especially on steep grades or when backing uphill into a tight spot).