Deuce jumps in reverse

[JohnnyColeman]

My deuce jumps in reverse. I have to use low transfer. That helps some. What is wrong?

Johnny Coleman
SSG, USA
Retired

 

[oldshep]

mine doesent really jump but will i guess you could say "surge" so i back up in low most of the time too.

 

[gijoe13]

This happened to me and it was my emergency brake pads sticking. Check your springs on the e brake.

 

[CanonNinja]

mine did that too... just through it was nature of the beast

 

[supermechanic]

If you mean the transfer case jumps to neutral while backing up, this could be as easy as checking the linkages for enough slack, and seeing to the engine and tranny mount bolts being tight.
In certain cases, combination of somethings being too loose, and others tight could cause a problem like this.
This is the 'lucky you' scenario.
The 'unlucky you' scenario involves instalation of a new transfer case.
Others will chime in with more info.
I have had this problem,(in a 5 ton) my final solution was a replacement.

 

[CanonNinja]

unless the OP is talking about when you first come off the clutch.... if thats what he's referring to, then nothing wrong there

 

[Flyingvan911]

I think the OP means the truck lunges when moving backward. Give it a little gas and it should smooth out. It is just all the forces coming together to make the truck bounce and wiggle.

 

[steelandcanvas]

Nothing wrong. Use low range when backing, no more bounce.

 

[doghead]

How high?

 

[TIGERFANS2]

Did the previous owner trade it in on a '63 C hevy low rider?

 

[oldshep]

i pretty much accept the "jump" as an old truck thing. its not new and probably has a little wear on it.

 

[fuzzytoaster]

I posted a thread on this long ago but can't seem to find it while simultaneously cooking chow. It's just how it is, give her some gas to steady out and roll in low gear.

 

[nk14zp]

http://www.steelsoldiers.com/deuce/53186-reverse-gear-deuce-surges.html

 

[fuzzytoaster]

http://www.steelsoldiers.com/deuce/53186-reverse-gear-deuce-surges.html

(dinner was worth it btw)

 

[supermechanic]

I've got the picture now, it's the lurch associated with gear clearance/driveline slop.
My previous post is not helpful in this matter, please disregard.

 

[Shoprat 19th Engr]

Some times the pressure plate and thr fly wheel have what are called hot spots and that will cause it to jump as you say

 

[papercu]

Keep your foot off of the clutch and give it a little more fuel. Wayne

 

[Flyingvan911]

I know it's a little different but the 2006 Freightliner Classic I used to drive would do the same thing in reverse.