weren't you talking about changing that u joint, do you do that yet?
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president." http://mybroadband.co.za/photos/data...re_cowbell.gif
I was at a Jeep parts shop today to buy some u-joints. The guy there checked my right u-joint and said that it´s ok.
The sound must come from some other thing. It´s only there when I brake after backing off very slow. We took off the tire in the shop but we couldn´t find anything.
Wow Nico... That's a pretty loud knock. Is it coming from the rear? Are your brake adjusters and rear brakes OK? Is there any slop in your rear axles? How does the rear u-joint look? What about the rear diff? That's about all I can think of that would make that sound.
When you checked the caliper bolts were they "tight"? They are very easy to strip out and can seem tight. From hearing your sound I'm almost thinking that's what it might be. Other than, just make sure that when you are in 4wd that both shafts are turning so you know that one isn't splined or broken.
President - Arizona Off-Highway Vehicle Coalition
Vice-President - ASA4WDC
Arizona Rock Rats
I would take the caliper off and check the brake pad for excessive play
“He who knows not and knows not that he knows not, he is a fool, shun him.
He who knows not and knows he knows not, he is simple, teach him.
He who knows and knows not he knows, he is asleep, wake him.
But he who knows, and knows he knows, he is wise, follow him.”
89 yj 4 banger 5sp. 2" BL 31x10.50 fixed up and sold
97 tj 4.0 Auto 4"RC lift 33x12.50 mud rovers on outlaw IIs . Smitty bumpers
Are the brake pads the correct ones? Wondering if someone used the wrong ones and they are shifting inside the calipers. The pad ends should butt up tight against the inside of the calipers. You should see signs of wear/movement if that's the case. It wouldn't be the first time! Just recently the parts guy tried to give me the wrong ones.
I wonder if it could be one of the control arm bushings worn out. An upper or even a lower. Have a close look, but that probably won't reveal it if it is. Put your fingers right on the bushing area and have someone else jounce it or lift the body slightly with a floor jack. See if you can feel looseness or slop - you shouldn't.
As the body lifts a little, the arms pull differently, just like when backing up and braking.
It could even be something as mundane as a loose shock.
Or it could even be more serious, like a broken control arm mount, cracked arm, etc. Try the poor man's Magna Flux trick. Lightly spray flat black paint on all parts that you might suspect could be cracked - welds, joints, anything.
Drive it a few days. Depending on your weather, it helps to park it on grass or a damp surface. You want the humidity.
Then look for a thin orange line in the black paint. A crack that's not obvious normally will rub together and scrape off fine powdered steel that collects along the crack's surface. After a few days that powdered steel rusts, forming a nice orange line against the black paint.
I'd think if it's an axle U-joint it would make noise all the time in reverse, not just the once.
It's no wonder the country is falling apart - stupidity abounds!
I think i found the problem.
after installing the warn oil pan skid plate i forgot to tighten the LCA bolt enough. now the bushing is worn out. today i tightened the bolt as much as i can and the noise is nearly gone.
i´ll see how long it will be better now. next spring i will update to Currie or JKS CAs.