GEAR OIL LEAK IN REAR END!!! HELP

chris03gt · July 2nd, 2007, 10:47 AM

I have gear oil coming from my rear end, but its not coming from the girdle so its not a gasket or a crack in the girdle, its coming out of something just in front of it, idk what its coming from. If anyone knows of what kind of problem this is please tell me, im not sure but i think i need a new rear end which i would not like to pay for but i want to know why oil is coming out.

MustangMatt96GT · July 2nd, 2007, 11:39 AM

Its your pinion seal! Just take the driveshaft down and you will beable to pop another one on there!

G.T. Rags · July 2nd, 2007, 12:28 PM

and put an aluminnum driveshaft in her place to reduce friction.

97_4.6L_Stang · July 7th, 2007, 02:28 PM

just some advice. you'll need an impact to remove the nut on the front of the diff.

dshep · July 9th, 2007, 04:14 AM

i didn't need an impact gun but yeah anyway i would take it to a shop to have the seal replaced because i've asked around and the right way to do it is to install a new crush sleeve and reset the preload, which takes something like 400 ft lbs to torque down, whenever the pinion nut is loosened(just google it) i replaced my leaking pinion seal but it was still looking so i took it to a transmission place that does diff and trans case work as well and it turned out that my pinion bearing was bad from an improper ring and pinion install (by the previous owner of course) but its up to you but somebody screwed mine up and it cost me over five hundred dollars to have the pinion and carrier bearings replaced so depending on how bad it is leaking if you have stock gears etc. I would just leave it be for a while after topping off the gear oil until you can have it done right for 1xx dollars

dshep · July 9th, 2007, 04:18 AM

p.s. usually when the pinion bearing goes completely it grenades your ring and pinion but you should have no problem with you bearings if you have stock components and have not beaten the complete piss out of your car

July 2nd, 2007, 10:47 AM	#1
chris03gt Newbie Join Date: Jul 2007 Posts: 4 iTrader: 0 reviews	GEAR OIL LEAK IN REAR END!!! HELP I have gear oil coming from my rear end, but its not coming from the girdle so its not a gasket or a crack in the girdle, its coming out of something just in front of it, idk what its coming from. If anyone knows of what kind of problem this is please tell me, im not sure but i think i need a new rear end which i would not like to pay for but i want to know why oil is coming out.

July 2nd, 2007, 11:39 AM	#2
MustangMatt96GT Proud American 1996 Mustang GT 10.76 @ 122 with d/a of 8365 ft Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,170 iTrader: 3 reviews	Its your pinion seal! Just take the driveshaft down and you will beable to pop another one on there! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars

July 7th, 2007, 02:28 PM	#4
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	just some advice. you'll need an impact to remove the nut on the front of the diff. __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

July 9th, 2007, 04:14 AM	#5
dshep Regular Join Date: Mar 2007 Posts: 64 iTrader: 0 reviews	i didn't need an impact gun but yeah anyway i would take it to a shop to have the seal replaced because i've asked around and the right way to do it is to install a new crush sleeve and reset the preload, which takes something like 400 ft lbs to torque down, whenever the pinion nut is loosened(just google it) i replaced my leaking pinion seal but it was still looking so i took it to a transmission place that does diff and trans case work as well and it turned out that my pinion bearing was bad from an improper ring and pinion install (by the previous owner of course) but its up to you but somebody screwed mine up and it cost me over five hundred dollars to have the pinion and carrier bearings replaced so depending on how bad it is leaking if you have stock gears etc. I would just leave it be for a while after topping off the gear oil until you can have it done right for 1xx dollars __________________ 2001MustangGTCoupeYelloww/SatinBlack*3.73Gears AuburnLSDBBKColdAirIntakeBBKCaster/CamberPlates EibachMACCatbackMACO/RHpipeSportlineSprings SteedaTimingAdjusterSteedaUpperADJ.ControlArms SteedaShocksSteedaShortThrowShifter SuperiorAxles

July 9th, 2007, 04:18 AM	#6
dshep Regular Join Date: Mar 2007 Posts: 64 iTrader: 0 reviews	p.s. usually when the pinion bearing goes completely it grenades your ring and pinion but you should have no problem with you bearings if you have stock components and have not beaten the complete piss out of your car __________________ 2001MustangGTCoupeYelloww/SatinBlack*3.73Gears AuburnLSDBBKColdAirIntakeBBKCaster/CamberPlates EibachMACCatbackMACO/RHpipeSportlineSprings SteedaTimingAdjusterSteedaUpperADJ.ControlArms SteedaShocksSteedaShortThrowShifter SuperiorAxles

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