well replace m rear monday and now with i let of the gas it makes a sound .Its deffently comes from the back i replace the pinon seal thats it and replaced the fluid

a whine, a squeek, a knock, give us some more to work with and we will see what we can do....... just a little more info please

a whine deffently .I replaced the rear seal amd fluid i put a 1.5 qts

more than likely you're gonna have to put the rear in the air on jacks and locate the area the whine is coming from. be it the pumpkin or an axle bearing, etc.

...i think i have a bad axle bearing myself, i feel your pain...

^^^ AGREE ^^^ .... what kind of rear end did you replace it with, i know the gears in some heavy duty rears while , no way out of it, but this is normaly subject on big trucks (internationals are bad for it) .....wouldn't think it would apply to a rear on a camaro

my axle bearing exploded 50 miles after a complete rear-end rebuild. name brand parts on everything. replaced with a new gm bearing, and i believe the thing is still whining...hope you have better luck than me.

Gear noise can be determined by the whine occurance. Is it on light acceleration, de-celeration, load, no-load, etc?

It happens on de-celeration.But when i start give it gas it goes rightr away just like that .Well heres more in for the car had 373 in it one leg pegger and it was about to go so i replaced it with one i was told that was good and was a posi 273s .I do a lot of highway driving so higher gears were needed. and when i swaped them i got the sound in the back end

What weight fluid did you put in it? Did it do it B4?

Now here awhat i think is a Answer to my own ? when reinstalling the crush sleeve it gos on top of the bear right ??? any one have a good diagram of a 10 bolt

this may help you, not sure

http://www.chevyhiperformance.com/te...all/index.html

i have the same damn problem with the gu5 rear (3.23 gearing) it goes with hard acceleration and comes during coast and changes pitch during light acceleration

The only way to know is to check your backlash and also check your mating surfaces. Marking complound and check your coast and drive engagements. If you used your old crush sleeve you might have a problem there. Being its crushed too far and the pinion and ring arent mating right.

well i did use my old crush sleave and then i found out you were no spouse to so i think it couse be the problem where coul i buy one .Would one be in anyold part store

Dealer usually always has them for $10 or so. Ive read both inputs on re-using the sleeve. IMO its a one-time-use part. For cheap insurance go with what you feel comfortable with. Also...just a side querty...what weight oil did you use and did you add limited slip additive?

i use lucas racing gear fluid says on the back no additives ness .

i rebuilt my rear by my self on the ground 7.5 10 bolt 28 spline axles this rear is very weak its not rated for much150hpto190hp it sucks and if u like snacthing gears the crush sleeve will crush this is so u dont bust ur housing.
first take wheels off drums/rotors take pot cover off take pin bolt out its on
the carreir spin the axle and the spiders will fall outtake c clips out remove axles undo carrier bolts remove carrier take drive shaft down take pinnion nut off get a dead beat hammer hit pinnion until comes off yokepull pinnion out.

a whine on decel is gear noise, usually from improper setup or wear, was the rear new or used (up?)

hey i learned from u old guys

Well me being the person i am and not want to hear it any more got under my car today jacked it up ,pulled back the drive shaft and just tighed up the nut on the pinon shaft and drove it and no more noise screwed up huh thanks for all your help ill let you guys know if it comes back

most likely will come back, usually thats what happens if you dont change the crush sleeve

yep it will come back worse grinding sound

I plan on puting a new one in .But it was just a quick fix .I was doing about a 120 on the highway and never felt or herd any thing

replace ur pinnion bearings too