whats needed to change rear end seal?

Slapyo · Oct 9, 2007

i think the rear end on my 03 gt is leaking. i was wondering how you change it and what parts/tools are required.

i think you just remove the cover, let the fluid drain. then put the cover back on and fill it back up till the fuild comes out of the fill hole. i'm not sure if it is a gasket seal i need to go buy or if it is some kind of liquid gasket. also what type of fluid do i fill it back up with?

it's been leaking slow for about a week now, and i tried to tighten the bolts but they were already tight. is there a possibility that this could be something else?

Dirty_D · Oct 9, 2007

Are you talking about the rear pinion seal? Theres a gasket that you need to buy.

03ghoststang · Oct 9, 2007

if its the diferential cover, you can get a tube of black ultra RTV silicone to reseal it or get the gasket form ford..........

Mike97gt · Oct 9, 2007

Don't use the gasket. I have seen rear ends blown up from really badly leaking cover seals.

From the factory these cars are sealed with black RTV and thats what you should use to reseal it.

You want to fill it with 75-140 synth fluid with a tiny bit of friction modifier. use just enough to stop the clutches from chattering. OHHH one last thing fill it until it's about 1/4 inch bellow the hole.

Slapyo · Oct 9, 2007

ya, i think it's coming from the differential cover. started leaking out of no where. i've only had the opportunity to see the small puddles under the car and to see some sort of fluid dripping off of the rear end. i suppose i will go pick up that stuff and redo the seal and hopefully that works.

thanks for the info. if this doesn't solve the problem i'll be back heh.

COramprat · Oct 9, 2007

The black RTV is what I used. Refilling is a pain. Maybe someone knows a trick but I usually get more on the ground than in the differential.

Slapyo · Oct 9, 2007

any tips for filling it up? also, how do i tell it is about 1/4" below the hole ... i thought it was a small hole in the side and you just filled it till it started to come out.

03ghoststang · Oct 10, 2007

at work its easy to pour in when its up on the air .....but when i do diferential work at home i actually have a little manual pump to put the fluid in

timeless2 · Oct 10, 2007

Slapyo said:
any tips for filling it up? also, how do i tell it is about 1/4" below the hole ... i thought it was a small hole in the side and you just filled it till it started to come out.

You're gonna have to finger the hole to check the fluid level.

03ghoststang said:
at work its easy to pour in when its up on the air .....but when i do diferential work at home i actually have a little manual pump to put the fluid in

Those pumps are the same ones commonly used for fluid extraction, correct?

03ghoststang · Oct 10, 2007

timeless2 said:
You're gonna have to finger the hole to check the fluid level.

Those pumps are the same ones commonly used for fluid extraction, correct?

yeah it is but instead of extratcing the fluid they put fluid in

TripleBlk · Oct 10, 2007

Slapyo said:
any tips for filling it up? also, how do i tell it is about 1/4" below the hole ... i thought it was a small hole in the side and you just filled it till it started to come out.

There is a vent on the passenger's side of the axle. Remove it with a 15mm wrench, get a gear filling setup from Wal-Mart, and pump away. You are welcome.

Slapyo · Oct 10, 2007

thanks for all the input. gonna get all the stuff and give it a shot friday. see what happens.

chrisconsin · Oct 12, 2007

svttech76 said:
You want to fill it with 75-140 synth fluid with a tiny bit of friction modifier. use just enough to stop the clutches from chatterin.

how much is a "tiny bit" of fm, like a 1/4 of the bottle you get from ford?

propellerhead · Oct 12, 2007

+1 on the pump. I went cheap and got the $3 funnel with hose option. I had a lot of oil spill. I'm sure it would have gone so much smoother if I bought the $8 lotion bottle style pump thing.

I picked up two bottles of Royal Purple for around $10 each. Two bottles just about fills it up and you won't need friction modifier.

Slapyo · Oct 17, 2007

thanks for the help. changed it and it's not leaking anymore.

whats needed to change rear end seal?

Slapyo

Dirty_D

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03ghoststang

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Mike97gt

it doe snot

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COramprat

...I can take it. I think.

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timeless2

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03ghoststang

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chrisconsin

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propellerhead

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whats needed to change rear end seal?

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