New Rear diff cover and fluid change

JohnyPython · Jan 22, 2021

Red89gt said:
Old thread but getting ready to do a spicer cover.
Spicer bolts no good and reuse the oem is your suggestion?
Are spicer bolts longer than stock because stamp oem cover versus thick aftermarket flange?
Cover is on order and I don’t have it in front of me, I would like to have install ready to go when it gets here. Thanks.

Spicer bolts are longer than oem. I used them with no problems despite reports of bolts shearing. I think the spec is 14ftlbs.

Buzzard2 · Jan 22, 2021

I Used grade 8 bolts and had no problems.

elMechanic · Mar 24, 2021

I know its an old thread,

But was looking for some info about the diff cover.
As I was planning to change the diff oil, as I don’t remember when was the last time I changed the diff oil X_X (probably long time ago)

and said why not change the diff cover as well.

one main question, does the spicer come with a gasket? Or I need to use and apply some kind of sealant

zombiekiller · Mar 24, 2021

elMechanic said:
I know its an old thread,

But was looking for some info about the diff cover.
As I was planning to change the diff oil, as I don’t remember when was the last time I changed the diff oil X_X (probably long time ago)

and said why not change the diff cover as well.

one main question, does the spicer come with a gasket? Or I need to use and apply some kind of sealant

yes it does, but I'd still order a lubelocker gasket. they seal better and they are about $20.

elMechanic · Mar 24, 2021

zombiekiller said:
yes it does, but I'd still order a lubelocker gasket. they seal better and they are about $20.

Thanks for the reply,

I have one more concern, does mid perch / GIESERS/EIBACH springs is considered as a lift, and I need to use the top fill hole? or just use the bottom one and I am good to go?

EricM · Mar 24, 2021

Use the bottom hole. You'd only need to use the top hole if the truck was massively lifted and the axle/pinion rotated upwards. Nobody does that on a Raptor- well, mostly nobody.

elMechanic · Mar 24, 2021

EricM said:
Use the bottom hole. You'd only need to use the top hole if the truck was massively lifted and the axle/pinion rotated upwards. Nobody does that on a Raptor- well, mostly nobody.

great, thanks a lot really appreciate it

elMechanic · Mar 31, 2021

BTW guys, I contacted ford and asked about their ford performance rear diff cover bolts torque, and their reply was “20-25ft lbs” .

I asked them because I ordered the ford one, as the spicer is out of stock.!

Sent from my iPhone using Tapatalk

Gdog · Mar 31, 2021

so installed the ford diff cover awhile back. Everything is pretty straight forward but reality is 14 ftlb of torque is not much. I tighten up to 20 ft lbs plus using a star pattern to tighten and no drips no runs ect… diff cover is a nice touch and functional... win win...

elMechanic · Mar 31, 2021

Niice, good to know,

Diff cover arrived, just waiting for the lube locker gasket and will install soon as well.

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New Rear diff cover and fluid change

JohnyPython

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Buzzard2

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elMechanic

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zombiekiller

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elMechanic

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EricM

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elMechanic

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Gdog

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