Rear end oil
Thread Starter
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Senior User
Joined: Oct 2004
Posts: 262
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From: Northern Virginia
Rear end oil
I got my truck back from Midas today.Headers,2 1/2" exhaust and high flow mufflers.It really woke that 352 up(or it sounds like it).While in the shop I looked at the rear and found it to be a 4:10 limited slip.I looked in my shop manual an it only says to use the ford oil,What do I use in this thing?Is the ford oil still available?
Thanx,
Joe
Thanx,
Joe
Tuned
Joined: Sep 2004
Posts: 305
Likes: 1
From: Fuquay Varina, NC
I have a 3:50 limited slip and just changed out the oil. I used 1 bottle of LS additive and Mobile-1 75W-90 synthetic. I believe it takes a little less than 2.5Q, so I bought 3 bottles + the additive (put in first). Have lots of fun draining the old stuff!!!
Thread Starter
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Senior User
Joined: Oct 2004
Posts: 262
Likes: 0
From: Northern Virginia
Thanx
There ia a small leak at the pinion seal but I'll deal with that in the spring.Is the additive is available at a regular auto parts store?I hate the smell of gear oil!!
Is it hard to drain the old stuff out?I haven't looked at the rear real close.
Joe
Is it hard to drain the old stuff out?I haven't looked at the rear real close.
Joe
Tuned
Joined: Sep 2004
Posts: 305
Likes: 1
From: Fuquay Varina, NC
I picked up the additive and M-1 at my local Auto-Zone. You will need to suction the thick gear oil out - I used a hand-held Mity-Vac but the cup only holds about 6-8 oz. Had to pump and empty over and over. Of course you could take the back plate off if you want to clean/replace gasket route.
Laughing Gas
Joined: Oct 2001
Posts: 957
Likes: 3
From: Winchendon MA
Theres no back plate to remove on a 9 inch.
Yes most auto parts places have the additive just don't spill any in side the truck, you might get some rubber gloves while your there. Pee-u that smell.
As for getting the old oil out drive the truck for 10 miles or so first it will thin out the oil thus it will flow faster.
I use 5/16 motorcycle fuel line to drain them. Motorcycle fuel line has a thinner wall, so it fit through the hole better put flows good. Get ~ 2 feet start it with a mitey -vac or sick the end in your regular shop vac untill it starts up the tube then let gravity drain the rest. If you use a hallogen shop light place that under the ceter section it will keep the rear warm. thus aid in draining.
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Yes most auto parts places have the additive just don't spill any in side the truck, you might get some rubber gloves while your there. Pee-u that smell.
As for getting the old oil out drive the truck for 10 miles or so first it will thin out the oil thus it will flow faster.
I use 5/16 motorcycle fuel line to drain them. Motorcycle fuel line has a thinner wall, so it fit through the hole better put flows good. Get ~ 2 feet start it with a mitey -vac or sick the end in your regular shop vac untill it starts up the tube then let gravity drain the rest. If you use a hallogen shop light place that under the ceter section it will keep the rear warm. thus aid in draining.
44
