Front/Rear Diff Oil Type and Fill Level

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thatJeepguy

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Should be 3-ish for the rear

I’m using same fluid, Amsoil gear oil is great stuff, their ATF makes a noticeable improvement in shift feel every time I swap it out on my manual trans C5Z (yeah sounds odd but Amsoil recommends their synthetic ATF for the Tremec T56) - which made me a real believer in their stuff (on top of engine oil analysis always coming back clean)
You’ve added this the the 10r80 with success?
 

Badgertits

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You’ve added this the the 10r80 with success?
No I’m just commenting on how I can immediately notice improvement w. Their atf when I swap for fresh in my manual trans vette

But I am not sure if I’d put anything besides what is recommended for the trans, not gonna change my trans fluid until 60-70k miles, I have 45k now
 

thatJeepguy

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No I’m just commenting on how I can immediately notice improvement w. Their atf when I swap for fresh in my manual trans vette

But I am not sure if I’d put anything besides what is recommended for the trans, not gonna change my trans fluid until 60-70k miles, I have 45k now
What year is yr vette? Im doing my trans fluid pretty soon on the Rap i have the same milage and was thinking about just using amsoil atf on it.
 

Badgertits

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What year is yr vette? Im doing my trans fluid pretty soon on the Rap i have the same milage and was thinking about just using amsoil atf on it.
2003, I don’t know why the manual Tremec T56 trans calls for ATF, but regardless the Amsoil stuff works great

I would just check on Amsoil’s website whether or not it meets the spec for the 10 speed in the Raptor & if so wouldn’t hesitate to use it, I’m using Amsoil fluid in the rear diff & the T-case, but using ford synthetic for the front diff b/c I had the dealer service it as it’s a much harder job than the t-case or rear diff & I didn’t wanna bother w/ it
 

thatJeepguy

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2003, I don’t know why the manual Tremec T56 trans calls for ATF, but regardless the Amsoil stuff works great

I would just check on Amsoil’s website whether or not it meets the spec for the 10 speed in the Raptor & if so wouldn’t hesitate to use it
Thats crazy we had a 2002 rag top . Great car . I miss it often.

Will check site.
 

vk35

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Apologize to resurrect this thread. Mainly want to confirm if I should fill exactly 1.9 qt or let it fill until it drips out. I’m at 1.9qt and still not dripping out @FordTechOne

2018 ford Raptor
 

vk35

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Fill until drip. Don't cap until drip stops.
Got it, so if it take slightly more than 2qt, keep adding until it drips? I only ordered 2 qt and filled both of the bottles. Still not dripping out.
 

Bozz

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Got it, so if it take slightly more than 2qt, keep adding until it drips? I only ordered 2 qt and filled both of the bottles. Still not dripping out.
Don't know how much 2018 holds......or if you're talking about front or rear, but......

My 2012 Gen 1 took about 3.7 QTS on the rear. Don't remember about the front, but it was a LOT less.
 
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