Truck Hops In Reverse

apply a lite amount of brake when sliding the clutch.

 

Don't "ride" the clutch.

 

Your probably turning too sharp.

 

+1

You can control your speed better with releasing the clutch all the way and then slight braking. You shouldn't have to "ride" the clutch.

 

How is it that idling in reverse is causing the truck to go too fast? Are you backing down a grade, or do you have a really high (numerically low) axle ratio?

First off, I assume you have the transmission in low range, and that you're idling the whole time (not giving it any throttle).

Riding the clutch is not allowing engine braking to do its job. Let the clutch all the way out, then use light pressure on the service brakes to slow down. Plus, you could be damaging the clutch.

 

Driveline lash is whats happening. And yes its kinda because youre riding the clutch.

 

is it with a heavy load? same thing happened to me when id do that. just release the clutch and use just the brake like mentioned above

 

Driveline deflection, U-joints do not always transmit power at the same speed. With the clutch out the center hub dampens this but slipping the clutch means you are constantly applying torque and keep the center hub from doing it's job...which is absorbing the tiny im-balances from crankshaft rotation, etc. The applied torque of the slipping clutch keeps the center hub locked.

The more a U-joint bends the slower the other half turns and this 'lash' is one of the forces the clutch center hub absorbs.

Since most tractors still use dual clutch plates, you are pushing against two center hubs.

I learned this at 16 trying to back a small 6 wheel wrecker over a curb...the impact would cause my foot to make the clutch dis-engage & the boss yelled to get my foot off the clutch and drive the truck up over the curb...

 

Explain exactly what you are doing when you ride the clutch. Are you pulling closed tandems or a spread axle?