Ford Racing Gears...***BE CAREFUL***
 

When Ordering Ford Racing Rear Diff Gears...if The Part # Ends With An "n" Do Not Buy Them...just Had A Rude Awakening..they Might Fit Your Mustang But They Are Not Made For A Mustang...i Could Go On And On About This But It Will End Up Costing You Huge In The End.i Was Not Aware Of This When I Ordered Them And The Company Never Said Otherwise Either...spend The Extra Dough And Buy Richmond !!!!!!!!!! I'll Know Next Time

should i ask??i saw your car on the hoist on friday looked good so far...but strange stuff is sure a pain from what i heard...

Gears
 

NO! i will tell you about it later,the strange stuff was ok...it was s&Y*%^^* ford racing gears

tell us why man.

I have FRP gears what gives? Not sure if the N is their as the box is gone now. :confused:

Gears
 

they will not mesh properly all the way around ring and pinion and will be noisy on the coast side of the gear...you get one side to line up the other side wont:BUY RICHMOND!!!!!!!!

Gears
 

look on your receipt...maybe

Thats weird! I always recommend Ford gears as I rarely have to shim them, I've always had to shim the Richmond Gears...... I've also seen a couple of prematurely worn ring gears from Richmond, never had that problem with genuine Ford stuff. That sucks dude, I hope things work out for ya.
SS

Those are new gears with different type of cut and a bevelled rear face. They have to be set up differently than the non "N" gear. Can't recall the precise changes, but I will look them up. If anyone is NOT familiar with installing "N"'s - don't do it. I think they are only available in one ratio 3:73 or 4:10 - not postive which one.

Why not just order the PROPER gears rather than recommending Richmond?

Thousands of people don't seem to have a problem. Perhaps had you got the correct gears, you wouldn't have this problem.

the first thing the previous owner did to my car was frpp 4.10's that was back in mid 1999, and the car still runs minty great.

gears
 

(from what i understand there is two different sets of gears you can get.if you get the ones with the "n" at the end you will have problems...when i ordered them i did not know this and i was never advised of this problem before.....had i known this i would have ordered richmond stuff.all i'm saying is that if you get the set with an"n" you will have problems i dont know if these are a cheaper gear than non "n" type.i've never had a problem with motorsport stuff before.

sucks man...sorry to hear it...i am sure it will all work out...nothin like a pain in your rear to make ya crabby eh..... :shakeit: :hump:

Gears
 

unf&^%*&%#^^* believable

I have ford gears as well.. no problems

Been using Ford gears as well with zero issues. Perhaps it's a bad run of em.

I had a set of Ford 3:73s installed a month ago and the shop said they were a breeze to go in. I don't have any noise, etc so maybe it was just a bad batch. I do have my box so I'll take a look at the part no.

Sorry to hear about your experience.

Agreed. i have FMS 3.73s and had FMS 3.55s in my last Stang. never had aproblem. maybe you just got a bum set? i've always been told to run the FMS gears and i recomend them to all. If ya do a search on corral or stangnet on gears everyone says to get the FMS gears.

where did you buy them?

I have ford racing 4:10's in my car, they dont make any noise and are great so far. I actually heard bad things about Richmond but never any ford racing gears

sux to hear your bad luck man

Mr. LX Express.....maybe yours just weren't set up properly.

gears
 

they were done by probably the best guy in the business i wont mention any names because thats not right...but i would go back to him again and i would recommend him to anyone who asks where to go.this guy has done everything from 15 sec cars to 6 sec pro rides!!!!!!!!!!!!!!!!

not sure man. I have no doubt in the abilities of your installer.

I know when you install gears you check the pattern to make sure they mesh good. Im thinking if something was wrong with them or they never fit wouldnt it show up when they where checked?

Im not laying blame, so dont think that. just wondering what would cause it. maybe just a bum set?

Bum Gears
 

....maybe it was a bum set...there is no doubt that this guy couldnt do the job...even still..a bum set is a bum set...you cant return them so your screwed.they do mesh good on the accel side perfect in one spot then spin it and then there will a spot where 4-5 teeth dont mesh on the decel side.when you pay for something like that you would think that it would machined better than that..........the installer IS NOT TO BLAME...would go back there in a minute

yeah, must be a bad set. i mean with the amount of people that use them, honestly this is the first set that ive heard that are like this.

sorry to hear it man.

Not sure where you bought em from but of course they have warranty.

i didnt think things like gears would have a warrenty normaly. however for a failure like this id inquire for sure!

If the gear shows a proper pattern but has an issue it should be no problem getting warranty. I had no issue last year returning a set of FMS lowering springs that ended up approx 1" lower than advertised.

No sense running around blaming anyone. The "N"'s are a different cut, and DO get set up differently. I'm pulling my hair out(what little I have left) trying to find the specifics. If ANY installer is not familiar with them, they wont be right. It's one of those things, the instructions are in the box and you say "I know how to install gears" and toss them. We ALL do it!!!

gears
 

well all I can say is I just checked my box cause my 4:10's are still sitting in it, and I'm happy to say no "n", I hope all works out well with your next set.

ive looked on a few online sites and seems like the only gears that have an N is the FMS 3.73s.

Ford Racing's catalog says this about the M-4209-373N:

"Replaces our popular M-4209-F373. New manufacturing technology utilizing a Face Hob process which features a single-pass pinion tooth machining operation compared to a conventional three pass process for machining. CNC cut and lapped gear teeth. Higher strength and better quality gears are produced with the Face Hob process. Note: These gears look a little different, the gear teeth are cut on a different angle and the ring gear has a bevel on the back of the gear."

This partnumber is called out for 'Mustang/Ranger/F-150 8.8"' axles.

Sounds like one or more of a bad setup, a bad set of gears, possibly a mismatched ring & pinion (since they are lapped as a matching pair during machining)...

Gears
 

thanx,man,i appreciate it

I've had one frpp gear set over the past 8 years that we had trouble setting up.
Ford racing gears are, by far the easiest to set up, and much quieter than richmonds if set up properly.
Sounds like you got a bad set...
The "n" replaced the regular 4209f373's a couple (or more) years ago.

why is this a sticky?

to hiughlight that someone installed his gears wrong? :laughhard

Gears
 

thanx for the info............

gears
 

nobody installed the gears wrong!

Then explain something.

It was noted above that the old number gears were replaced with the "n" gears. Which meant the correct gears were installed. That means that any problems with them must have been related to the installation.

i have had richmond and will not tell anyone to buy them. They where set up perfect with the best pattern a mid backlash and no matter what they where noisy. I now have 3:73's ford gears and they are whiper quiet. I love them and i will never go back.

hey dinglenuts your about as smart as a shiny marble.... lol [ i know you ] .. i also have a set of frp gears [ 4:10] waiting to be installed . i read my frp book and it looks like the 3:73 were the only ones with the n and welcome to the cmoc lawrence :tup

here you go again recovering dead posts :laughhard