I just had a "rebuilt" rear put in my '88 Firebird. I was told it was rebuilt with a new posi unti and 3.73 Motive gears. My question is: Are Motive gears supposed to be noisy? While under acceleration it sounds fine but on decel it gets pretty loud. I have read on www.thirdgen.org that the Motive's are loud. Does anyone have any experience with these gears? thanks!
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Thread: Motive Rear End gears
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04-30-2010, 07:16 PM #1BCM Cruiser
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Motive Rear End gears
1988 Trans Am, 305 TBI, 5spd, hooker catback, 3.73posi, LCAs, LCARBs, prokit, KYB GR2 + Gas-A-Just, PHB
1999 GMC Sonoma, 4.3, 5spd ZQ8
1994 Pontiac Bonneville 3.8N/A 187k
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04-30-2010, 07:23 PM #2BCM Rseident Grill Master
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I have their 4:10's in mine. Do the same thing.
Originally Posted by Pepsicola300
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04-30-2010, 08:52 PM #3R.I.P. BCM
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I know this is OT but wholy smokes where have you been? I remember talking Sdime stuff waaaay back in the day. Originally Posted by Pepsicola300
All posts from the above author are expected to be 100% BS. Thank you and have a nice day.
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05-01-2010, 10:41 AM #4BCM Cruiser
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Cool. Good to know they are supposed to be loud. I though something might be all messed up.
GTSLOW: I've busy, bought a house a few years ago and really haven't had time and money for things. I've been watching the boards every now and then though. Your right it has been a LONG time. I'm hoping to get out to some shows this year too.
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05-03-2010, 06:55 PM #5Rather be junkyarding
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I'll echo that....still have that hood and ever sell the GTA wheels? Originally Posted by GTSLOW
I know this is OT but wholy smokes where have you been? I remember talking Sdime stuff waaaay back in the day.
86' MCSS - 13.35 @103
87' MCLS - 14.55 @96
02' Regal GS - Who cares
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05-04-2010, 03:34 PM #6Ol' School
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No gears are really supposed to be LOUD... some slight noise that can easily be drown by the exhaust or radio would be acceptable but you may not be able to get it 100% polished out due to gear material etc... Motives are actually about the quietest of any aftermarket for a 10-bolt 7.5
2012 Cruze ECO M6 - Crystal Red- Just a little more boost than stock!
2001 Camaro SS - Rallye Red - In process.
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05-04-2010, 04:06 PM #7BCM Cruiser
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hah.. I still have the hood but sold the rims last year to help pay for new windows. Originally Posted by PB86MCSS
I'll echo that....still have that hood and ever sell the GTA wheels?
BAD LS1: I can't drown it out with the radio. It does howl pretty good. I'm thinking about having it checked out. It seems to drive good no issues except for the "howl."
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05-18-2010, 01:27 PM #8BCM Cruiser
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Anybody know of a good place/person to take a car to check out the gears?
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05-18-2010, 06:38 PM #9Rather be junkyarding
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There was a place close to the southside I was given a recommendation on when I was considering having some work done, I'd have to find the info.
* Just checked where I thought it might be, don't have the info anymore. Curious myself of where though, I'll ask my "source".Last edited by PB86MCSS; 05-18-2010 at 06:40 PM.
86' MCSS - 13.35 @103
87' MCLS - 14.55 @96
02' Regal GS - Who cares
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