my front axle twists really hard when i launch the the truck in 4x4. the other day i was messing around in the driveway dumping the clutch in 4x4 in 1st gear and everyones jaw dropped when he saw the front end lift and the axle twist. so i had my brother jump in the truck and basically launch the truck in 4x4 so i could watch what everyone sees that's so bad. the front axle really twists really hard, to the point where im worried about my u-joints. i didn't think i would have to worry about this on a 4 link truck, if my link bars bushings are worn out, will new ones really take all the twist out or is it because i have a 4" lift kit with the stock link bars? i was thinking the lower link bars being too short from the lift kit causes the axle to change its pinion angle when it reaches full droop. i cant tell if its the pinion angle changing with droop from the fact that the truck practically pulls a wheelie or if its the power thats twisting the axle around.

does anyone else have this same issue? should i be too concerned? i always wanted a truck with a solid enough drive train and axles to do a ***** to the wall 4x4 launch in and it seems my dreams are being crushed here .

 

dont dump the clutch in 4WD on the dry pavement prob solved

 

wow just wow. what kind of brain it must take to dump the clutch in 4x4 on dry pavement.

 

kids

 

Where do you live? I wanna be there when you break your stuff so I don't have to break mine.

 

you guys on the diesel bombers forum have never heard of a 4x4 launch? have any of you been to the drag strip? when you wanna get a good time theres no choice, either dump the clutch in 2wd, twist the rear axle and blow the tires off or put it in 4x4 and cut a good 60ft time. theres really nothing wrong with a 4x4 launch, i just need to know how to get the axle wrap to stop, a 4 link setup really shouldn't have problems like this. i think it has to do with poor geometry of the 4 link, but id like to see if anyone else has had this problem before i go and build a set of lower link bars.

 

well ya we have I do them in the mystery truck BUT....

I ONLY DO THEM ON THE DRAG STRIP

not just for fun in my front yard only abuse it when you have to because it may leave you hoofin it when you need it the most

 

... that is no where near how to launch a truck for drag racing...

 

awe what do you mean 10PSI in 4X4 3rd gear? LMAO

 

well since everybody just wants to criticize u, i'll try to help with what little knowledge i have. have u checked the bushings in the link arms? with a 4 inch lift i think ur bars need to be about 3/4 of an inch longer to keep the axel centered in the wheel well. thats prolly where id start