Price/parts check on 4.10 gear kit

[Jeronimojc]

Would anyone here help me confirm this is the right kit and a reasonable price for 4.10s?

http://www.latemodelrestoration.com/item/LRS-4209FRC-K/Mustang-88-410-Ratio-Rear-End-Gear-Kit?utm_source=google-shopping&utm_medium=comparison-shopping&utm_campaign=google-shopping

[fastblackmerc]

Would anyone here help me confirm this is the right kit and a reasonable price for 4.10s?

http://www.latemodelrestoration.com/item/LRS-4209FRC-K/Mustang-88-410-Ratio-Rear-End-Gear-Kit?utm_source=google-shopping&utm_medium=comparison-shopping&utm_campaign=google-shopping

Yes and yes

[NXSBOB]

M-4209-88410 .. 4.10 RATIO .. $126.50
http://www.tousleyfordparts.com/partlocator/index.cfm?action=specials&siteid=214771

[MOTOWN]

I wouldnt use synthetic gear oil in a new gear install, most shops will tell you to break it in with conventional gear oil.

[Timw286]

M-4209-88410 .. 4.10 RATIO .. $126.50
http://www.tousleyfordparts.com/partlocator/index.cfm?action=specials&siteid=214771


There's no need to replace the gaskets and stuff if you're just doing gears swap out, correct? Just being the 4:10's to a reputable shop and have them swap them out and replace the fluid


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[Jeronimojc]

Thanks for the input guys. I realize I could save some $ by just changing gears but I don't mind the extra $ to replace a few other things once we open this up. Thanks again.

[Timw286]

Thanks for the input guys. I realize I could save some $ by just changing gears but I don't mind the extra $ to replace a few other things once we open this up. Thanks again.

Let me know how they feel, this is my Next mod


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[Bradley G]

A nice upgrade to the diff is the cobra clutches and the S spring from an F-150.
Also friction modifier should be added to the gear oil.

[Jeronimojc]

I know this has probably been asked hundreds of times but I couldn't find the answer. My 2003 Marauder Owner's Guide says I need 1.8L (=1.9 quarts) of rear axle lubricant. However, Ford's Pinion and Installation Instruction Sheet (M-4209-8.8, see link) says I need 2.5L (= 2.64 quarts). Is the quantity difference perhaps because the Owner's guide addresses 're-fill' quantity rather than 'fill' quantity? BTW, the Owner's guide also suggests 80W-90 oil but I'll go with 75W140 as indicated in the Pinion Installation Instruction Sheet. http://cdn.lrsstatic.com/downloads/instructions/M420988.pdf

[fastblackmerc]

I wouldnt use synthetic gear oil in a new gear install, most shops will tell you to break it in with conventional gear oil.

Hog wash!

Redline 75W140 at the initial install over 55k miles and no issues.

[fastblackmerc]

There's no need to replace the gaskets and stuff if you're just doing gears swap out, correct? Just being the 4:10's to a reputable shop and have them swap them out and replace the fluid


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For the extra couple of bucks why not do it while everything is out??

[fastblackmerc]

I know this has probably been asked hundreds of times but I couldn't find the answer. My 2003 Marauder Owner's Guide says I need 1.8L (=1.9 quarts) of rear axle lubricant. However, Ford's Pinion and Installation Instruction Sheet (M-4209-8.8, see link) says I need 2.5L (= 2.64 quarts). Is the quantity difference perhaps because the Owner's guide addresses 're-fill' quantity rather than 'fill' quantity? BTW, the Owner's guide also suggests 80W-90 oil but I'll go with 75W140 as indicated in the Pinion Installation Instruction Sheet. http://cdn.lrsstatic.com/downloads/instructions/M420988.pdf

Ford changed the spec after the MM came out.

[NXSBOB]

Originally Posted by MOTOWN MARAUDER http://www.mercurymarauder.net/forums/images/buttons/viewpost.gif (http://www.mercurymarauder.net/forums/showthread.php?p=1192048#post1 192048)
I wouldnt use synthetic gear oil in a new gear install, most shops will tell you to break it in with conventional gear oil.


Hog wash!

Redline 75W140 at the initial install over 55k miles and no issues.

I agree fastblackmerc!
Did "most shops" say "convention oil" and no posi additive?
Mobil 1 Synthic does not need posi additive.

[fastblackmerc]

Originally Posted by MOTOWN MARAUDER http://www.mercurymarauder.net/forums/images/buttons/viewpost.gif (http://www.mercurymarauder.net/forums/showthread.php?p=1192048#post1 192048)
I wouldnt use synthetic gear oil in a new gear install, most shops will tell you to break it in with conventional gear oil.



I agree fastblackmerc!
Did "most shops" say "convention oil" and no posi additive?
Mobil 1 Synthic does not need posi additive.

Most synthetics including Redline don't need FM.

[MOTOWN]

Hog wash!

Redline 75W140 at the initial install over 55k miles and no issues.

You can hollar hogwash! all you like this is common knowledge with gear installs, but whatever:bs:

[clintons4]

I know a bunch of the syn gear lubes already have FM. As far as the original topic my cost of gear install:

$99 shipped for Ford 4.10's (ebay)
$175 labor
Minor charge for lube and FM

[IwantmyMMnow!]

As far as the original topic my cost of gear install:

$99 shipped for Ford 4.10's (ebay)
$175 labor


^^^:eek:^^^

I thought I got a good deal...$140 for gear set and $200 for labor. I also had my diff rebuilt, so this may have added to my labor costs. Rebuild kit was $105.