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Thread: Differential - Is this normal?
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05-14-2016, 01:50 PM #1Junior Member
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Satin Black- 1998 Trans Am
Differential - Is this normal?
I was getting ready to start the installation of the racetronix harness and noticed the exhaust was black right before the differential. The chassis looks black. I took some pics. Is this normal, or do I have a differential leak? If that is the case, what are my options?
Thanks for the help knowledgeable folks.
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05-14-2016, 02:35 PM #2Senior Member
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Pewter- 2002 Trans Am WS6 M6
Yeah 10 bolts are notorious for leaking around the pinion seal. People joke it's a standard gm option.
Mine just leaked onto the rear end and the torque arm it was never enough to get all over the exhaust. I feel like that is more then normal.Last edited by raynor139; 05-14-2016 at 02:40 PM.
Mods - Lid, Skip Shift Eliminator, MGW shifter, UMI SFCs, Founders Lower Control Arms, Founders Panhard Bar, Founders Adj. Torque Arm, UMI Torque arm mount, MWC Drive shaft safety loop, KONI Yellows, Strano Springs, Strano Sway bars, UMI Upper and lower A Arms, 160 thermostat, TSP headers and TSP true duals Monster stage 2 clutch, racetronix fuel pump, Strange S60 rear axle and tune by Frost.
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05-14-2016, 02:54 PM #3Senior Member
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Black- 2000 WS6 6spd Hooker LT
Yes looks like a pinion seal leak. Check/monitor your fluid level, it may be nothing more than adding a few ounces a year, especially if you don't notice any dripping on the ground after you park for a few hours.
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05-15-2016, 09:33 AM #4Veteran
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Black & Blue- '02 WS.6 / '07 Suburban
I have posted at least a dozen times... leaking pinion seal was a factory installed option on these cars.
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05-17-2016, 10:04 AM #5Spaz is My Mentor
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Navy Blue Metallic- 98 T/A w/ mods, 00 FBVert
If it makes you feel any better it's the same on Ford & Dodge vehicles too.
My 8.8 has less then 2000 miles and the damn seal is leaking already.
My Durango same thing...rebuilt it last yr....
pinon seal is leaking.
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05-17-2016, 11:02 AM #6Junior Member
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Satin Black- 1998 Trans Am
Thanks for the replies. It is not dripping on the ground. I will lookup how to check the level and keep an eye on it.
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05-17-2016, 11:04 AM #7Spaz is My Mentor
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Navy Blue Metallic- 98 T/A w/ mods, 00 FBVert
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05-17-2016, 12:56 PM #8Senior Member
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Silver- '02 Trans Am WS-6, 6M
Leaking 10 bolt pinion seals were NEVER a factory option....
Originally Posted by pajeff02
I have posted at least a dozen times... leaking pinion seal was a factory installed option on these cars.
it was standard equipment!!!
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