3.73 gears and i what i need

chamillionaire · **3.73 gears and i what i need**

Im going to buy 3.73 gears with diff and im listing the parts im buying if im missing anything else please list it for me

List
*Ford Racing 3.73 gear
*Ford Racing Limited Slip Diff.
*Rear End Master Bearing kit
*Royal Purple Gear Lube(Dont know how many quarts or what number of lube)
*Ford Racing Friction Modifier
*Manual 5-spd Speedometer Gear(Dont know which one or if i have to buy a driver gear for 100% accuracy
*Notched Carrier Cross Pin and Bolt

If im missing something please list it or if you know my questions in the (...)

lowflyn · 07-22-2005, 11:57 PM

What year and model stang do you have?

chamillionaire · 07-22-2005, 11:59 PM

Its a 1997 Mustang v6 5spd with a 7.5 axle

Kiljosh · 07-23-2005, 02:15 AM

*Notched Carrier Cross Pin and Bolt

I was going to say that but nm.

**SpectorV** · 07-23-2005, 09:00 AM

the new diff will come with a carrier pin I do belive, either way I didnt need a newone. The new carrier is identical to the old one minus the clutches.

Better safe than sorry so go ahead and get it... it cant be much. Just buy new parts and check with www.gefracing.com for prices (call em for oem parts which is what you need, unless ford racing is cheaper)

The ONLY thing it seems you are missing is a good quality install... which is the most important. With out it all tha stuff doesnt matter lol... oh and a warrenty IN WRITING also is needed.

Kiljosh · 07-23-2005, 09:33 AM

Arent they different for different gear ratios. If he is going to put 3.73's in a 97 that means he has 2.73 stock. Dont cross pins change after you hit I think 3.53 and you need notched ones?

slvr2000stang · 07-23-2005, 09:37 AM

A new 7.5 t-lok will have the corect Carrier Cross Pin and Bolt.

**SpectorV** · 07-23-2005, 10:53 AM

yea, just buy new parts and you should be good.

Danger Dude · 07-23-2005, 11:25 AM


Quote: Originally Posted by chamillionaire Im going to buy 3.73 gears with diff and im listing the parts im buying if im missing anything else please list it for me List Ford Racing 3.73 gear Ford Racing Limited Slip Diff. Rear End Master Bearing kit Royal Purple Gear Lube(Dont know how many quarts or what number of lube) Ford Racing Friction Modifier Manual 5-spd Speedometer Gear(Dont know which one or if i have to buy a driver gear for 100% accuracy *Notched Carrier Cross Pin and Bolt If im missing something please list it or if you know my questions in the (...)

You dont need the notched cross pin it comes with the T lok. No on the gear drive but you will need a 23 toothed white speedo gear. You can pick up friction modifier at any local autozone or Advanced Auto for half the price Ford wants for it.

NJStang86 · 07-23-2005, 01:51 PM

I don't think you need any friction modifier with the Royal Purple Gear oil...

I could be wrong tho

Danger Dude · 07-23-2005, 01:57 PM


Quote: Originally Posted by NJStang86 I don't think you need any friction modifier with the Royal Purple Gear oil... I could be wrong tho

Yes you do!! The friction modifier is to help the cluthes wear or bed in correctly. It is not for the gears themselves

tedness · 07-23-2005, 06:20 PM

very thorough. go purple royal!

Kiljosh · 07-23-2005, 06:52 PM

royal purple you mean?

No, that stuff does kick ass when I finish my car I am going full purple treatment!

Danger Dude · 07-23-2005, 07:58 PM

Royal Purple is good I will not deny that but the truth be told all synthetic is good, I was one of the lead Analyst in a 2 year study and found almost no difference in the wear with cars using any of the synthetic oils but we found vast differences between the best standard oil and the cheapest synthetic. So saying that when you read on the Royal Purplr website or amgazine article * Increase Horse Power * Reduce Engine Wear * Save Energy * Extend Oil Drain Intervals!!!! All synthetic do. Royal purple does a good job of making believe their synthetic oil in MAGIC!! HAHHAHAHAHAHA but truth be told Mobile1, Castrol and other major brands do just as well.

But if you can get Royal Purple for a deal and get if as cheap as Mobil 1 or Castrol then jump on it otherwise you will be dumping $27 more every oil change down the drain instead of $10 to $12.

slvr2000stang · 07-23-2005, 08:36 PM

I have been told that with new bearings not to use a full synthetic right away.

Run on regular gear oil for a couple of hundred miles then change over.

Danger Dude · 07-23-2005, 08:45 PM


Quote: Originally Posted by slvr2000stang I have been told that with new bearings not to use a full synthetic right away. Run on regular gear oil for a couple of hundred miles then change over.

I believe that is a myth. I thing that was something started in the 80's when Synthetic oil was just starting out and some of the seals were thought to need regular oil to set properly. That is just like the myth in not using synthetic in older vehicles or they will start leaking. On a molecular level having synthetic oil in a new engine will bed in to the bearing surfaces providing better protection that dino oil which goes thru Viscosity break down under normal use and extreme breakdown under high temp use.

The reason I say this is when you build a engine the assembly lube you use is a Synthetic Moly lube. In the old days we used motor honey when building but that was then this is now. If it was really a problem the factories would put warnings on the owners manual and in the engine bay

chamillionaire · 07-23-2005, 09:42 PM

how many quarts of royal purple if im right its like about 2 or 2.5 and how do i add the friction modifier do i mix it with the royal purple lube and what number of lube do i need

slvr2000stang · 07-23-2005, 10:06 PM

I was told that by my last installer that does it for a reputable performance shop.

Just making mention of it.

Tbird232ci · 07-24-2005, 01:04 AM


Quote: Originally Posted by Danger Dude I believe that is a myth. I thing that was something started in the 80's when Synthetic oil was just starting out and some of the seals were thought to need regular oil to set properly. That is just like the myth in not using synthetic in older vehicles or they will start leaking. On a molecular level having synthetic oil in a new engine will bed in to the bearing surfaces providing better protection that dino oil which goes thru Viscosity break down under normal use and extreme breakdown under high temp use. The reason I say this is when you build a engine the assembly lube you use is a Synthetic Moly lube. In the old days we used motor honey when building but that was then this is now. If it was really a problem the factories would put warnings on the owners manual and in the engine bay

i have to disagree about some of the myths

i used Mobil 1 synthetic in my old dodge, and it leaked from everywehre possible, and it cause my turbo to smoke. what happens is, the synthetic has some harsher detergents, and it ends up breaking down the sludge in older engines, sludge that sometimes/many times will kinda seal up leaks and keep it from leaking

and using synthetic in a fresh engine generally is a no-no, not because of the bearings, but because of the rings. the cylinder walls are crosshatched to wear the rings down to get them properly seated to the cylinder walls, with synthetic oil, the rings dont seat because the synthetic oil sticks to everything, it doesnt just run off of the surface, so it lubricates the walls so well that the rings cant wear down. the bearings have no problems, because they dont really break in, they do to an extent, but its not as imparitive that they break in in the way the rings need to

with gears, you really dont want them to wear, the teeth are machined to mesh together beautifully, and by them wearing, that mesh would be hurt

go synthetic, and use a friction modifier, and be set, id prsonally use Mobile 1

slvr2000stang · 07-24-2005, 09:04 AM

He was referring to new bearings being installed in the rear end.

Like I said I was just bringing it up.

Danger Dude · 09:42 AM


Quote: Originally Posted by chamillionaire how many quarts of royal purple if im right its like about 2 or 2.5 and how do i add the friction modifier do i mix it with the royal purple lube and what number of lube do i need

Not quite 2 guarts of 80w-90 lube and 4 oz of friction modifier. Put the friction modifier in first then the lube. You wont use every bit of the second bottle