Gear Oil change

Blackbeauty v601 · March 26th, 2008, 12:27 PM

how do i change my gear oil, i just added 4.10 gears and a t-lock and i have my 500 miles of break in time finished so i need to change my oil. I bought royal purple gear oil but i dont know how to drain the old oil or how to add the new one, is it something i can do or should i pay the $45 for fire hawk automotive to do it?

saldoggs · March 27th, 2008, 09:58 PM

its not hard but can be messey if you do it yourself on the floor. If you have the factory diff cover you just take the bolts out and pry the cover off slowly and the gear oil will just drain out. re install the cover with a new gasket. then on the other side of the rear housing you will see the fill plug it is either a 3/8 or 1/2 square hole you can use your a ratchet to take out the plug its located above the pinionon the driver side of the car then fill with gear oil this is a pain to do usually i get a 1/2 hose and stick it on the cap of the gear oil bottleand squeeze it in buy an extra quart of gear oil cause on the ground you will not get all of it out of the bottle good luck
if it were me i would pay the 45 if it includes the gear oil

klean4.6 · March 31st, 2008, 10:58 AM

I just did my Girdle, and its not hard. Don't use the gasket, it sucks. I did and i'm taking it off because it's slowly leaking. RTV it and save the trouble or just have the shop do it so if it leaks, then take it back. Put Royal Purple and put either LPW or T/A girdle while your doing it. Advance Auto has a ciphen pump to ease the filling. I used 3.25 Quarts of royal purple and never over flowed. The aftermarket girdle requires .5 more quarts. Good luck.

zolen · March 31st, 2008, 11:12 AM

To save from having to reseal the diff cover, you can get a small hand oil pump from autozone for like $3 or so and just slide the tube in the filler hole and suck the old oil out. Then fill it back up. You might not get every last drop out, but its much easier that way. For $45 id be tempted to just let the shop do it though.

zinc02GT · April 2nd, 2008, 12:38 AM

Originally Posted by saldoggs

its not hard but can be messey if you do it yourself on the floor. If you have the factory diff cover you just take the bolts out and pry the cover off slowly and the gear oil will just drain out. re install the cover with a new gasket. then on the other side of the rear housing you will see the fill plug it is either a 3/8 or 1/2 square hole you can use your a ratchet to take out the plug its located above the pinionon the driver side of the car then fill with gear oil this is a pain to do usually i get a 1/2 hose and stick it on the cap of the gear oil bottleand squeeze it in buy an extra quart of gear oil cause on the ground you will not get all of it out of the bottle good luck
if it were me i would pay the 45 if it includes the gear oil

this is amazing thank yuou so much. I was having trouble finding this info and look here... rep

Blackbeauty v601 · April 7th, 2008, 11:05 PM

$45 but thats with out the oil is what they are charging me for.... i got my own oil royal purple from AM.com i only got 3 quarts i hope thats enough.

WAR-PARTY · April 7th, 2008, 11:38 PM

Because of the smell of gear oil, and how messy it can be pay the 45 bucks. It is a bargin at twice the price. If you put and aftermarket cover on the car it has a fill port at the top and a drain port at the bottom. You can drill a 3/4 to 1 inch hole in the spare tire well, and run a hose directly to the fill port, and you can find a rubber body pulg to fill the hole.

Blackbeauty v601 · April 12th, 2008, 04:46 PM

so because i supplied the oil the really nice guy at firehawk automotive changed my gear oil for free so i didn't pay one penny really nice guys there and they do a great job.

zinc02GT · April 13th, 2008, 01:00 AM

i did mine on my own. Smell was bad and the mess was big. It only takes like 2 1/2 quarts apparently. Unlike the owners manual saying 4.25 quarts....

Anyway big mess, I used RP, and it took me about an hour and a half.

This in a nutshell is a pain in the ass

russtoy · April 28th, 2008, 11:02 PM

total pain in the ass, a real mess

ZTedster · May 17th, 2008, 12:58 AM

Stinky? Messy? Aw come on, men! Mix a tad of Royal Purple with a bottle of Hoppes #9. You just created the finest men's cologne on God's green earth!

HMUSN · May 17th, 2008, 09:21 AM

^ welcome to the forums

March 26th, 2008, 12:27 PM	#1
Blackbeauty v601 Regular 2001 Mustang 3.8 Join Date: Jun 2007 Location: Seven Hills OH Posts: 323	Gear Oil change how do i change my gear oil, i just added 4.10 gears and a t-lock and i have my 500 miles of break in time finished so i need to change my oil. I bought royal purple gear oil but i dont know how to drain the old oil or how to add the new one, is it something i can do or should i pay the $45 for fire hawk automotive to do it?

March 31st, 2008, 10:58 AM	#3
klean4.6 Newbie Join Date: Jul 2007 Posts: 23	I just did my Girdle, and its not hard. Don't use the gasket, it sucks. I did and i'm taking it off because it's slowly leaking. RTV it and save the trouble or just have the shop do it so if it leaks, then take it back. Put Royal Purple and put either LPW or T/A girdle while your doing it. Advance Auto has a ciphen pump to ease the filling. I used 3.25 Quarts of royal purple and never over flowed. The aftermarket girdle requires .5 more quarts. Good luck. Last edited by klean4.6 : March 31st, 2008 at 11:00 AM. Reason: Add info

April 7th, 2008, 11:38 PM	#7
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,055	Because of the smell of gear oil, and how messy it can be pay the 45 bucks. It is a bargin at twice the price. If you put and aftermarket cover on the car it has a fill port at the top and a drain port at the bottom. You can drill a 3/4 to 1 inch hole in the spare tire well, and run a hose directly to the fill port, and you can find a rubber body pulg to fill the hole. __________________ I don't care if you lick windows, take the special bus or occasionally pee on yourself.. You hang in there sunshine, you're special.

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March 27th, 2008, 09:58 PM	#2
saldoggs Regular 1993 mustang lx convertib Join Date: Jan 2008 Location: staten island nyc Posts: 127	its not hard but can be messey if you do it yourself on the floor. If you have the factory diff cover you just take the bolts out and pry the cover off slowly and the gear oil will just drain out. re install the cover with a new gasket. then on the other side of the rear housing you will see the fill plug it is either a 3/8 or 1/2 square hole you can use your a ratchet to take out the plug its located above the pinionon the driver side of the car then fill with gear oil this is a pain to do usually i get a 1/2 hose and stick it on the cap of the gear oil bottleand squeeze it in buy an extra quart of gear oil cause on the ground you will not get all of it out of the bottle good luck if it were me i would pay the 45 if it includes the gear oil

March 31st, 2008, 11:12 AM	#4
zolen Newbie 2003 Cobra 12.3@ 113 Join Date: Mar 2008 Location: Bham AL Posts: 37	To save from having to reseal the diff cover, you can get a small hand oil pump from autozone for like $3 or so and just slide the tube in the filler hole and suck the old oil out. Then fill it back up. You might not get every last drop out, but its much easier that way. For $45 id be tempted to just let the shop do it though.

April 7th, 2008, 11:05 PM	#6
Blackbeauty v601 Regular 2001 Mustang 3.8 Join Date: Jun 2007 Location: Seven Hills OH Posts: 323	$45 but thats with out the oil is what they are charging me for.... i got my own oil royal purple from AM.com i only got 3 quarts i hope thats enough.

April 12th, 2008, 04:46 PM	#8
Blackbeauty v601 Regular 2001 Mustang 3.8 Join Date: Jun 2007 Location: Seven Hills OH Posts: 323	so because i supplied the oil the really nice guy at firehawk automotive changed my gear oil for free so i didn't pay one penny really nice guys there and they do a great job.

April 28th, 2008, 11:02 PM	#10
russtoy Newbie 2002 mustang gt 13.50@102 Join Date: Apr 2008 Location: Maryland Posts: 13	total pain in the ass, a real mess

May 17th, 2008, 12:58 AM	#11
ZTedster Look Ma! My First Post! Join Date: May 2008 Posts: 1	Stinky? Messy? Aw come on, men! Mix a tad of Royal Purple with a bottle of Hoppes #9. You just created the finest men's cologne on God's green earth!

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