My driveway is very short and very steep so I park on an incline.

I sometimes use 4wd to reverse out, otherwise it feels like im riding the ˟˟˟˟ out of the clutch when I try to start moving up the incline in reverse. If I use 4wd when reversing out, I can sort of just let the clutch out slowly in reverse with little to no gas and it will slowly back out nicely - BUT sometimes it will do this violent bucking while backing out as soon as the clutch is fully released and seems like the only way to stop it is to press the clutch back in and try again.. almost like wheelhop but more like what happens when you're learning to drive a manual..

is this normal? Is it bucking just because I'm not giving it gas and the incline is too steep + no momentum? Because it seems like it will still do it sometimes while giving a litthe throttle...

 

Probably "normal". I assume you're in low range 4wd, for the extra torque going up the incline. You have a basic mass-spring system that bounces, or oscillates at a rate determined by the spring constant and the mass. The truck is the mass, the drive-line windup is the spring, the engine is the energy source. With the higher torque of low range, you can wind up the drive line more, and if the engine response time is in sync with the mass-spring oscillation rate, the bucking increases until you do something about it. Kind of like pushing a kid in a swing. If you do it at the right rate, (s)he goes higher and higher.

Operating in high range changes the variables so things don't sync up. Again, like pushing a swing at the wrong rate - not much happens, and kid says "Daddy, do it right!".

Feeding the engine a bit more gas will likely change things enough to reduce or prevent the bucking. Easing out the clutch will reduce the original windup and energy storage in the drive line, which also reduces the problem.

 

Excellent response! That totally makes sense, Thanks RJR!