Vehicle & Technical > Jeep

Engine noise after suspension lift?

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mgilbert:
All - thanks for your input so far. I've also been reading that having had a suspension lift, the front axle can go out of line by a 1/4 inch or so and needs lining back up with the trac bar.

Is this true? How would lifting the body suddenly make the axle drag to the left/right. The sound I have does have the feeling that the front prop shaft is binding somewhere. Perhaps this is the trouble I've got.

greasemonkey:
HI
if the lift is such that the u/j has reached it's max angle then it will rub
check it out by looking for new metal or rub marks
i don't think 2 inches will make a difference though but worth looking
also check the compression joint is not out by too much
thats the splined bit
if you have any other questions i have a friend just done a complete
live hylux axel conversion to a frontera so he knows a thing or two
cheers
GM

tim_aka_tim:

--- Quote from: "mgilbert" ---I've also been reading that having had a suspension lift, the front axle can go out of line by a 1/4 inch or so and needs lining back up with the trac bar.

Is this true? How would lifting the body suddenly make the axle drag to the left/right.
--- End quote ---


A little difficult to explain without a diagram, so I wont. Have a look here on wikipedia at the Panhard rod entry. http://en.wikipedia.org/wiki/Panhard_rod That should make it clearer why a lift makes the axle kick over.

mgilbert:
Thanks Tim, Ah, I see now thanks. Raising the body then has a proportional effect to the angle of the trac bar. The higher the angle of the trac bar, the more axle shift will occur (jeez, I sound like a mad professor).

I know for sure the trac bar wasn't adjusted, maybe all I have a shifted axle which is causing a bind on the prop shaft. I'm assuming the stock trac bar can actually be altered to realign the axle?

Thanks - Mark

tim_aka_tim:

--- Quote from: "mgilbert" ---Thanks Tim, Ah, I see now thanks. Raising the body then has a proportional effect to the angle of the trac bar. The higher the angle of the trac bar, the more axle shift will occur
--- End quote ---


Presactly. I had to replace mine with an adjustable one, cus the stock one was just too short, but you should get away with the stock one with a 2" lift.

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