i put new 4.10 gears in my car and they are whining when u let off the gas could be the gears or is something wrong please help

 

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What did you set your back lash at? It's been a hella long time since I've done a rear end, but if memory serves me right...which it rarely does....I beleive the back lash should be about .007 or .07... I think. I'm sure the chilton's manual has the correct measurement. Not having the correct back lash or new gears can cause noise from your rear end.

 

tell me again how do u set back lash maybe thats the problem

 

Backlash is set by moving shims from side to side on the outside of the carrier bearing races. Your new gearset will have the back lash spec stamped on the ring gear. It is measured with a dial indicator and magnetic base.

 

Did you do a gear pattern check? From what your saying the coast side is making the noise.

As said above u set the backlash with shims on either side of the Carrier.

to Check backlash * in case u dont know or dont remeber* You want your main caps torqued and all your other things done and mount a dial idicator on a flat surface near by and then put the tip of the DI On the underside of one of the ring's Teeth put pressure on the DI Zero it out and then watch while u push the ring up and down to see how much back-lash you have.

I hope your Set your pinon bearing preload?

 

along with back lash did you check the pinion depth when you installed it plus prelaod like was said above. did you install the bearings dry?

 

i think i want to take it out and start over so would someone walk me threw it? please!

 

Setting up gears is not something we can walk you thru over the internet. Take it to an experienced mechanic with the proper tools.

This is why I tell people gear installs are not something a backyard mechanic can do on his own.

 

how much do u think it would cost to have someone reinstall them????

 

All of the info is in this forum if you just look. I was clueless on mine and read on here for a while, then set up the gears and they were perfect. It isn't rocket science.

 

i think i can do it i just threw it togather i didnt do it i like i should. so i got to go back and do it right. i have a dial indicator now. i put one togather one time by feel it worked good. but this one im going to have to really do it right.

 

Ok, Im with everyone else.. if you dont know specificly what your doing have someone who knows help you or study and do it yourself.

 

ok on the crush collar how much force should it take to crush it i read somewhere 300 to 400 ft lbs that right?

 

Best thing you can do with one of these rear ends is ditch that crush sleeve and put a solid bearing spacer in.

 

where can i get one at

 

You got lucky then, and took the time to read and make yourself knowledgeable on the subject. Most people around here just throw themselves into a project and then half-*** it because its cheaper that way.

 

Luck has nothing to do with it.

 

The worst problem with your situation is that a lot of times, once you establish a wear pattern in the gears, even if you correct everything, they'll always be noisy. Once you get everything set up right, if they're still noisy, unfortunately you'll have to get a new set of gears and set them up right the first time.

 

if you didn't do the install correctly you can't just start over the gears are trash. you'll need a new set liek Pat said above. you should of been asking more questions before you started and maybe looking at a manual.

 

ok then why is that when i did my gear again today i got them right with no whinning?it was the preload was off!

 

because that's the result you were looking for, the gears are still trash. you've not said anything so far to show you have the slightest clue about what you're doing.

 

lol whatever u say

 

I was the first person to tell him to get help from someone with experience in his first thread on this subject, see page two, I didn't think I steered him wrong, nor gave any bad advice, but I got my face stomped into the mud, anyhow I'm just gonna say it goes to show rear gears are something you gotta be taught to do, sure some people can figure it out, but not everyone is a rocket scientist, theres a big difference between auto enthusiasts and auto mechanics, I learned at least 80% of what I know from watching other people and PAYING ATTENTION ! theres my two cents!

 

I agree I've done it in my 2 years of auto shop, basically college class, and I passed the test with a 100%, and suposedly I should be able to do it at professional level, and even Im to afraid to do my own, plus that was like 2 yrs ago

 

i really dont understand what it matter if i messed up fixing my car. and whats their to be scared worse i would have to use one of the five open rearend i have lay around the house. and about me not knowing what i'm doing ur right i had no idea really how to set up the rearend but that why i asked yall for tips but the car really didnt matter bc it will see maybe 100 road miles a month and maybe not even that now. so if the gears are trush it really dont matter