4.10 Gear Install Question

[NavySeabee]

Can a regular shop install 4.10s or does it require a specialized "Gear Shop"? I asked my mechanic (Family business), who has OUTSTANDING reviews and so far trustworthy if he can recommend someplace to which he replied "We can do it here". He also said for me to buy the parts, not a problem.

[NavySeabee]

Also, besides the Ford gears, what else is recommended to replace while they're back there? I'm at 96,000 miles.

[whitey]

Spider gears, 31 spine axles, differential cover with a drain plug....how much money do you want to spend:). If your na, i wouldnt stress the 31 spline axles. The diff cover with a drain plug makes changing diff fluid a clean and quick job.

[RubberCtyRauder]

Rebuild the trac lok with carbon clutches

[RF Overlord]

The diff cover with a drain plug makes changing diff fluid a clean and quick job.This.


Rebuild the trac lok with carbon clutchesAnd this.

[justbob]

If he owns a repair shop then I would be floored if he couldn't handle a simple gear swap. As for what else, definitely a set of clutches, new bearings and seals all around, a new pinion nut, & new ring bolts at a minimum. Don't forget Friction Modifier as well or you'll be regretting it in a week or so..


Builder Of Badassery

[jaywish]

Do you know if the axles have been changed?

[fastblackmerc]

I'd use the shop.

Since the rear will be out and I assume you have a decent amount of miles, I'd rebuild the diff using carbon fiber clutches, Ford ring and pinion set, master rebuild kit, solid crush collar, axle seals, axle bearings, diff cover with a drain plug and synthetic 70w140 gear oil (eliminates the need for friction modifier).

If the gears are quiet when driven, it was setup properly.

[NavySeabee]

Do you know if the axles have been changed?

I doubt it. I work with the previous owner and he hasn't changed them. I don't think the first owner had a reason to since he sold the car with only 25,000 miles on it.

[NavySeabee]

I'd use the shop.

carbon fiber clutches, Ford ring and pinion set, master rebuild kit, solid crush collar, axle seals, axle bearings, diff cover with a drain plug and synthetic 70w140 gear oil


Before I start searching for sources and part numbers, have a round-about figure on total price for these parts? Any site vendors to recommend?

Time to stop reading post about how much members LOVE their 4.10s and get on the ball. Looking forward to it!

Thanks.

[Mr. Man]

With those kind of miles Pete I'd rip out the 8.8 and go with a 9" rear with 5.13's, 31 splines, big ass yoke. That way when you drop in the 427W and built 5 speed tranny you'll be built proof at the track. ;)

[NavySeabee]

With those kind of miles Pete I'd rip out the 8.8 and go with a 9" rear with 5.13's, 31 splines, big ass yoke. That way when you drop in the 427W and built 5 speed tranny you'll be built proof at the track. ;)

Unfortunately, my working man's budget won't allow all that! lol

Thanks for the tip though :)

[Mr. Man]

Unfortunately, my working man's budget won't allow all that! lol

Thanks for the tip though :)Just planting the idea :D

[jaywish]

I suggest you ask the shop to check play on the outer wheel bearings well before you decide what parts if any you are going to replace along with the gears. If the axles are bad you need to plan for that and make some decisions on spline count in addition to the other parts.

[fastblackmerc]

Before I start searching for sources and part numbers, have a round-about figure on total price for these parts? Any site vendors to recommend?

Time to stop reading post about how much members LOVE their 4.10s and get on the ball. Looking forward to it!

Thanks.

I did mine years ago so the prices would not be valid.

Check with Tommy at Sparta.

[fastblackmerc]

Here are some P/N's:

M-4700-C - Carbon fibre clutch kit
M-4033-G2 - Ford differential cover with drain and load bolts (you can find this cheaper). Replacing the cover increases the fluid capacity, makes oil draining and refilling easier, better cooling and the load bolts helps prevent side bearing load deflection.

I'd also recommend the bearing cap stud kit (replace the bearing cap bolts with studs), cheap investment, making the rear stronger.

You can check Rock Auto, Late Model Restoration, East Coast Gear Supply, Currie Enterprises, Summit, Strange Engineering, CJ Pony Parts, American Muscle, Amazon, eBay, etc.

Any Ford 8.8 rear end parts will fit.

[NavySeabee]

Here are some P/N's:

M-4700-C - Carbon fibre clutch kit
M-4033-G2 - Ford differential cover with drain and load bolts (you can find this cheaper). Replacing the cover increases the fluid capacity, makes oil draining and refilling easier, better cooling and the load bolts helps prevent side bearing load deflection.

I'd also recommend the bearing cap stud kit (replace the bearing cap bolts with studs), cheap investment, making the rear stronger.

You can check Rock Auto, Late Model Restoration, East Coast Gear Supply, Currie Enterprises, Summit, Strange Engineering, CJ Pony Parts, American Muscle, Amazon, eBay, etc.

Any Ford 8.8 rear end parts will fit.

Thanks!

:):)

[RF Overlord]

Any site vendors to recommend? ALL of the site's supporting vendors are recommended. :)

[justbob]

Mobil 1 synthetic has failed me 2 out of 2 times regarding "friction modifier included".. Yeah, no..


Builder Of Badassery

[fastblackmerc]

Red Line FTW!!

[NavySeabee]

Is Royal Purple the way to go? I believe it has the friction modifier?

[fastblackmerc]

Is Royal Purple the way to go? I believe it has the friction modifier?

I use Red Line.

[jaywish]

One step that can help is to soak any new pads for 24 hours before installation. Pads could be in the carrier or not. I believe this will provide a better success rate with included friction modifier. Also not sure about what is necessary for carbon fiber or "extra clutch"/tighter fit setups.

[NavySeabee]

Is Royal Purple the way to go? I believe it has the friction modifier?

Reason I ask is I got a deal on the Royal Purple. Three quarts for $20. Is that enough? Not sure if I need to buy another quart or not.

[fastblackmerc]

Reason I ask is I got a deal on the Royal Purple. Three quarts for $20. Is that enough? Not sure if I need to buy another quart or not.

I would say yes as this is only their website:

"Formulated for limited-slip differential use"

[RF Overlord]

It'll take just over 2 quarts, and Royal Purple has been in the diff in Mary's car for a couple of years now and it's been fine, including a round trip from MA to GA and a high-speed run around Atlanta Motor Speedway.

[fastblackmerc]

This is a deal!

http://www.horsepowerjunkies.com/forums/showthread.php?t=148014

[NavySeabee]

Done shopping. Free shipping.

Thanks for all the help & info!

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]

Done shopping. Free shipping.

Thanks for all the help & info!

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

Good Deal!

And it includes Ford Racing gears!!! FTW!!!!!!!!

[fastblackmerc]

You shouldn't need the gasket as the factory used silicone gasket ...

[Reek09]

I'd use the shop.

Since the rear will be out and I assume you have a decent amount of miles, I'd rebuild the diff using carbon fiber clutches, Ford ring and pinion set, master rebuild kit, solid crush collar, axle seals, axle bearings, diff cover with a drain plug and synthetic 70w140 gear oil (eliminates the need for friction modifier).

If the gears are quiet when driven, it was setup properly.

What about BG Full synthetic 75-w140?

[MOTOWN]

What ever gear oil you use put friction modifier in it regardless if it claims to have it added or not.

[fastblackmerc]

What about BG Full synthetic 75-w140?

From the BG website:

:BG Ultra-Guard® LS Full Synthetic Gear Lubricant provides the ultimate in simplicity and ease when servicing for drive line components, especially those requiring limited slip function.

API GL-5 Hypoid ring and pinion gear sets, operating under high load with positive traction clutch packs or “on demand” limited slip function, are used in many modern front and rear axle drivelines. For proper function many of these units require the final lubricant to contain both a GL-5 lubricant and a fully active limited slip additive.

Together these two finished lubricants provide the designed drive performance and protection needed by the gears. Standard practice has been to add these two lubricants together individually, usually from separate sources. This can leave open the possibility of improper treat ratios, possibly creating inferior driveline performance and protection. Stocking these separate lubricant containers also created excessive inventory.

BG Ultra-Guard® LS Full Synthetic Gear Lubricant contains all the necessary ingredients required for API GL-5 rated gear applications, and also those requiring the addition of limited slip chemistry for positive traction, or “on demand” driveline systems.

As a full synthetic SAE 75W-90 API GL-5 gear lubricant, it is designed for severe service operation in both extreme heat and arctic cold conditions. BG Ultra-Guard® LS Full Synthetic Gear Lubricant is formulated for unsurpassed durability by providing improved seal conditioning, quieter operation and dependable protection. It is a universal product for all SAE 75W-90 API GL-5 lubricant applications."

The website only mentions 75w90.

[NavySeabee]

This is a deal!

http://www.horsepowerjunkies.com/forums/showthread.php?t=148014


SOLD! Before I got a chance :(

Is this as inexpensive as they get?

https://www.google.com/search?biw=1001&bih=736&output=search&tbm=shop&q=Ford+Racing+M-4033-G2&oq=Ford+Racing+M-4033-G2&gs_l=products-cc.3..0.9281.9281.0.10169.1.1. 0.0.0.0.130.130.0j1.1.0.msedr. ..0...1ac.1.61.products-cc..0.1.129.PjuwkqQ925U#tbm=sh op&q=Ford+Racing+8.8+diff+cover

[tmwlch1]

Try this place https://store-61bd2.mybigcommerce.com/login.php?from=account.php%3Fa ction%3D

[NavySeabee]

Will this fit on our marauders? Looks like it has the fill & drain plugs that were suggested.

http://www.ebay.com/itm/NEW-Ford-Mustang-8-8-Differential-Cover-Rear-End-Girdle-System-FastShip-A-Seller-/261013373736?pt=Motors_Car_Tru ck_Parts_Accessories&hash=item3cc59c0328&vxp=mtr

[justbob]

Yes.


Builder Of Badassery

[fastblackmerc]

Will this fit on our marauders? Looks like it has the fill & drain plugs that were suggested.

http://www.ebay.com/itm/NEW-Ford-Mustang-8-8-Differential-Cover-Rear-End-Girdle-System-FastShip-A-Seller-/261013373736?pt=Motors_Car_Tru ck_Parts_Accessories&hash=item3cc59c0328&vxp=mtr

Yes it will fit. Most Ford 8.8" solid axle parts are interchangeable.

Two things...

1 - put some Teflon tape on the differential side bearing bolts

2 - the differential side bearing bolts should be tighten to like 5 inch pounds, any more and you'll cause problems.

[fastblackmerc]

Did you get the stud kit to replace the bearing cap bolts?

http://www.ebay.com/itm/8-8-Ford-Dana-60-Main-Cap-Stud-Kit-/141052766954?pt=Motors_Car_Tru ck_Parts_Accessories&hash=item20d7666aea&vxp=mtr

[MOTOWN]

I got the stud kit , a few bucks cheaper TA performance sells it its an ARP stud kit http://www.ebay.com/itm/111362033390?_trksid=p2060778. m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[NavySeabee]

My shopping is complete!! Everything has arrived except the cover. All set for the shop. Thanks for everyone's help here!

This should be my last question...Do I really want to use the RP during the break-in period? If not, what's a less expensive brand for the first 500 or so miles? Is the oil change after 500 or so miles really required? I've done searches and get mixed answers.

Now all I need is some of this NE ice to melt and salt off the road so I can get it in the shop.

Thanks again and have a good weekend all!!

[MOTOWN]

My shopping is complete!! Everything has arrived except the cover. All set for the shop. Thanks for everyone's help here!

This should be my last question...Do I really want to use the RP during the break-in period? If not, what's a less expensive brand for the first 500 or so miles? Is the oil change after 500 or so miles really required? I've done searches and get mixed answers.

Now all I need is some of this NE ice to melt and salt off the road so I can get it in the shop.

Thanks again and have a good weekend all!!

I used Valvoline 75-140W with the gear install , the shop said they do not use synthetic gear oil on new gear installs , and it needs to be broken in with regular gear oil , i need to change my gear oil has about 500 miles on the 4:10s now.

[fastblackmerc]

My shopping is complete!! Everything has arrived except the cover. All set for the shop. Thanks for everyone's help here!

This should be my last question...Do I really want to use the RP during the break-in period? If not, what's a less expensive brand for the first 500 or so miles? Is the oil change after 500 or so miles really required? I've done searches and get mixed answers.

Now all I need is some of this NE ice to melt and salt off the road so I can get it in the shop.

Thanks again and have a good weekend all!!

I used Redline 75w140 from the initial install. No problems in 70k+ miles. No friction modifier either. Just keep the speed and distance down for the first 500 miles.

[Comin' in Hot]

here is my parts list thread

http://www.mercurymarauder.net/forums/showthread.php?t=88972

[burt ragio]

I would not use just any shop to inspect parts & install the gear. Why not use DEZ in Seekonk. Ma. they are close & competent.

[NavySeabee]

I would not use just any shop to inspect parts & install the gear. Why not use DEZ in Seekonk. Ma. they are close & competent.

Thanks!! I sent them a message to see if they'd do the job with my own parts.