Why does my driveline do this?

[Krazee DD]

Need some help on why my driveline does this?

http://www.youtube.com/watch?v=ulMuEXD34zM

Any help? Thanks.

[oneblacktj]

probably because your gear mesh between your motor and tranny are to close

[Krazee DD]

Originally Posted by oneblacktj

probably because your gear mesh between your motor and tranny are to close

That would make it lift like that?

[oneblacktj]

I would think so because your trans gears are having to force the motor to turn and the pressure built up in the trany has to exit somewhere. its kinda like when you rev the engine in a v8 the frame and suspention twist side to side. do you kinda get it? its caused by the force needing to escape and the springis the easiest point to move. and probablythere is a minimal binding in your axle to. try backing the motor off a little and try it again.

[2500hdon37s]

tourqe twist, does the front turn at all (like tires) maybe its binding

[Krazee DD]

Originally Posted by 2500hdon37s

tourqe twist, does the front turn at all (like tires) maybe its binding

Ya the fron tires turn.....When its level and not fully extended it works fine?

[oneblacktj]

TOEQUE TWIST!!!! thank you 2500 I couldnt think of the phrase. so does it do it when you turn the fronts instead of the back? Did you grease the hell out of the diff and tranny when you put it together? and does it do it when the axles are locked and open or just one or the other? Ill bet if you open the axle it wont do it. but thats all I got.

[romulus22]

i think its your u-joints in the shafts from being fully dropped out and binding. no way you should see any torque twist just from twisting the wheels by hand.

hold it upside down and turn the wheels. bet it goes away

[chuckatruck]

i know this sounds crazy but check your wheel hexs they get to tight to the knuckles when you tighten the wheel nut i hat to file the back of the hex on one of my creepers it sounded like my ring gear was missing teeth for som reason

[sidewaystreak]

wow thats weird...... thats to much to be TT i wanna say its somewhere in the drive line.....

[Jason MC]

Nothing weird about it at all. The drive shaft angles are to steep when it is hanging in the air. They are binding up. Very simple. Like the fellow above said turn the truck over or hold the suspension as if the truck where on the ground instead of just hanging there and it WILL go away. Don't worry about it. When the truck is on the ground and driving it will be fine.

[shadowrejects]

looks like your running air bags and hydros!

[freemachinist]

I think Romulus22 got it right.

[romulus22]

i pretty much know i did when i re read all the post and saw this

Originally Posted by Krazee DD

Ya the fron tires turn.....When its level and not fully extended it works fine?

[constantmotion]

Originally Posted by Krazee DD

Ya the fron tires turn.....When its level and not fully extended it works fine?

It's definitely binding somewhere. You don't see it as much on the ground because the wheels are pressing against the ground. I would still imagine that the chassis is twisting pretty good. Pull your drive shaft off your axles and see if the axles spin freely.

[rcslsafut]

i agree , mine doesnt do that.
you have a binding problem somewhere , you had better
address before you tear up something . could be diff,motor,
axles ,a number of things!! may have to tear it apart ,see what
going on!! good luck!!!