From what I remember when I replaced a ring and pinion a couple of years ago, once you do your initial setup for backlash and what-not, you then follow a run-in procedure to ‘set’ the gears. What happens is that the gears heat up and ‘set’. So it seems that if it was setup different than what was engraved on the ring and pinion at first, then there may not be any way to shim them again to be quiet. If I’m wrong, I’m sure someone will chime in :-)
By the way I’ve been lurking on this list for about a month and have been very impressed with the volume and quality of information passing by everyday.
Shawn
‘69 SS396 /325
on 6/27/02 9:15 AM, Dave Benjamin at [EMAIL PROTECTED] wrote:
Tom
I opened it up yesterday and checked it over. Goig through it I was riding on the heal so I checked the back lash . Good back lash is 3 to 8 thou. and I was at 15. I checked my end spacers on carrier and they were on the wrong sides. I switched them and it went to 8 to 9 but it still howls mainly when you are costing (not as load).
Is there suppose to be small shims on each side of the carrier main shims?
I am running 3.70 gears in a 10 bolt It is the 4 spring style.
Dave
Ingersoll,Ontario
My web site: http://members.tripod.com/benj30/
----- Original Message -----70 Chevelle SS <http://hometown.aol.com/micrlaser>
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, June 26, 2002 11:58 PM
Subject: Re: [Chevelle-List] Rear End shimming ????
Dave
How bad is the howl in the rear and what gears are you running. I have 4.10's in my 70 that are in dire need of replacing because the guy that set it up slapped it together for a drag car. The gears howl so bad that I cannot hear myself think until the car reaches 70 mph and then it goes away. It is not there under acceleration, only at constant speeds. If they are howling that bad, chances are the gears are shot and reshimming them could make it worse as it did mine. I tried repeatedly to reshim it and I even got it to where it should be and it made it much worse. I went and got a new set of 3.73 gears, now it is just a matter of me putting them in.
Tom
