The rubbing sound is most likely from the posi unit. Did you use the ‘limited slip’ additive when you put the diff oil in? If you did put in the additive you may also have some chattering of the clutches as they get broken in. When I put in my last posi ( In my Z71) I was told to run it slowly in a figure 8 in an empty parking lot to get the clutches broken in. It’s been a while and they still make some noise at low speeds in a gradual turn. Depending on the posi, you may never completely get rid of the chatter. As for the hum, unless you have done several rear ends and have quality dial indicators, it’s going to be kind of tough to get all the noise out of the high end aftermarket gears (Richmond, etc) That’s what I was told anyway.
Shawn
‘69 SS396 /325
on 6/27/02 10:07 AM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote:
Hi All,
while were on the subject of rearend shimming, last summer i had a friend of mine and my self take the rearend out of the car and replaced the 273 gears to the origonal 3.36 ones, i purchased a new posi and gears, it is by the way a 8.2, everything went well slapped it back together and installed it now i hear a noise like the tire is rubbing against the fender when turning right hand corners, and sometimes at slow speeds any clue on what happend or what we didnt do???? also the gears are richmond i called the sales person who sold them to me and he told me that richmond gears to tend to hum a bit, this is not a hum for sure. Thanks for any help.
KenD 72 HeavyChevyChevelle
