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View Full Version : Rear end gear ratio 95 auto?



Blownaway
03-05-2003, 06:40 PM
Can someone tell me what rear end gear ratio I can expect to find in a 95 SC w/ automatic trans? w/ 5 Speed trans?:)

J57ltr
03-05-2003, 06:44 PM
Usually 3.31:1 auto and 2.73:1 5sp

Blownaway
03-05-2003, 07:35 PM
thanks:)

JustinH
03-05-2003, 08:29 PM
I never seen 3.31 come factory in any year sc.

The base gear that the LX got was 3.08, i'm not sure if sc's got the 3.08 gear, and the option is 3.27. I'm pretty sure the 95 sc has 3.27 trac loc. The five speed has 2.73

Scott Long
03-05-2003, 10:02 PM
Since when in the hell do 94/95 auto SC's have trac-lok and 3.27's? You have been severly mis-informed my friend. The SC did infact have 3.31:1 ratio and has a traction control system which sucks and is totally different than the trac-lok for the 89-93 AOD equipped cars and the 5-speeds. The 94 and 95 SC are one tire fire cars from the factory.

Blownaway
03-05-2003, 11:14 PM
Many thanks.:)

J57ltr
03-06-2003, 01:57 AM
Only those with traction control use the open diff. The 5sp cars HAVE traction lock. I am not sure wether or not 5sp cars had traction control or not, but I do know that the cars that don't have traction control have traction lock. The reason, as far as I know, that they use an open diff in the trac control is that the rear brakes are used as part of the traction control function.

Jeff

Yes 3.31's in the auto. I have a set here pulled from a 94' auto.

vancouverBC
03-06-2003, 04:25 AM
Look on the drivers door pillar post for the "AX" on the label, that code tells you what diff & ratio you have. Both were options on new cars, so you can't go by a blanket statement. good luck

sail7seas
03-06-2003, 10:44 AM
My driver's door pillar post for the "AX" on the label says "E"
What would this mean for a 90SC?
Thanks!

mn12sc35th
03-06-2003, 03:35 PM
3.27 Trac-Lock. Check the top entry here for a list of codes/ratios.

http://www.tccoa.com/articles/gears/index.html#

1BADSC
03-06-2003, 03:44 PM
What does it mean, Under AX on mine it says "9" what does that mean. and that site does not list all the options and gear ratios.

1BADSC
03-06-2003, 06:08 PM
TTT

I want to know what the "9" stands for on my door sticker under |ax|

Dale Puumala
03-06-2003, 06:24 PM
"9" is the infamous 3.31. No clue why Ford used that when 3.27 seems to be the standard.

I have no idea why "9" isn't on the TCCoA article, but I think that's the only one that's missing. I couple years ago I was trying to figure out what my "9" meant, and it wasn't on the list. I finally figured it out.

Dale

1BADSC
03-06-2003, 06:27 PM
That is what I thought. The 3:31's would be a better performance gear than the 3:27's. Look at Corvette, Viper, and Trans-Am they all had an option for a 3:32 performance rear axle.

JustinH
03-06-2003, 06:52 PM
live and learn,

I have never heard of 331 in my entire life. Thats why I said "i think"

Thanks for correcting that.

JH

Dale Puumala
03-06-2003, 07:06 PM
True, it is higher performing than a 3.27. But not by much. Only about 1.2% better.

Dale

1BADSC
03-06-2003, 10:14 PM
Thin is in but Fat is where it's at! And these cars are plenty fat so all the help we can get id great, even if it is only 1.2%. He he.

lowflying90
03-06-2003, 11:21 PM
forget the 1.2% that the 3.31's give you. upgrade to 3.73's in the automatic SC's and THEN you'll have something noticeable.

Jeff

1BADSC
03-07-2003, 12:06 AM
3:73's in an auto equal out to be the same speed per gear as 3:55's in a 5-speed. And i used to have 3:55's in my 5-speed and they suck, my times were actually slower with the 3:55's compared to the 3:08's I'm running now. For My auto I am going to run 3:55's which would have the same speed per gear as 3:27's in a 5 speed. I do some highway driving on 6 hour trips so I hate having to run between 2500 and 2700 Rpms just to go 65-70 MPH. I think the 3:55's will be perfect for my auto.

lowflying90
03-07-2003, 11:40 AM
1BADSC-

Please scan and post a copy of your timeslips of your runs using both the 3.55 gears and the 3.08 gears. i'm curious and i'd like to see them for myself.

Jeff

ENCDEI97
03-07-2003, 11:32 PM
I really do not know where people get the idea that all 94/95 birds are one wheel burners i have a 95 with an auto and i can burn the rubber off both tires any time i please and there have been n o mods made to the rear end it is bone stock.

1BADSC
03-07-2003, 11:44 PM
well yours is the first one I have heard of with a posi rear end. Did you own your car since it was new or are you the second owner. 1994-1995 autos mostly had an open rear end with traction control. The 1994-1995 5 speeds came with a posi rear end.

2 Hot 2 Handle
03-08-2003, 03:01 AM
I have a 94 auto also ...& don't ask me why but it will burn the living !! out of both tires 80% of the time and burn the HOLy!!! out of 1 the other 20%..regardless of the tration control buttons position...on/off.
I do know there is no trac-loc on the car!, like my92 auto or 93 5 spd

lowflying90
03-08-2003, 03:26 AM
1BADSC-

Please scan and post a copy of your timeslips of your runs using both the 3.55 gears and the 3.08 gears. i'm curious and i'd like to see them for myself.

Jeff

ENCDEI97
03-08-2003, 09:23 AM
I am the second owner of my car. I do not believe that there has been any thing done to it. every time i work on it it seems as if it is still factory original.

pearl95sc
03-09-2003, 07:58 AM
I would also like to say that at any given time, I could light them both up. It didn't matter whether is was from a brake torque, or a dead stomp, they will both spin. Every time. It looks awesome when you leave an s mark burnout with 2 spinnin. Have burned up many bulls*t tires on the backroads. Anyways, there isn't any of that one wheel squeal garbage ova here.

Blownaway
03-10-2003, 11:30 PM
OK guys, is there some reason that I would have a problem if I installed a posi in my auto SC if I were to use the switch to disable the traction control? By the way, I to have discovered that have the (9) under AX on my door sticker which I know now to mean that I have the 331:1 rear ratio. Thanks guys.

J57ltr
03-10-2003, 11:34 PM
no just turn the TCC off.

Pearl95, you have a 5sp that means no traction control and a traction lock (posi) rear.

Unless there was a 5sp car out there with traction control. Pretty sure there wasn't.

Jeff

Jimmy 2Coupes
03-10-2003, 11:49 PM
Blownaway,
I installed a trac-lok (posi) along with some 3.55's in my 94 automatic a few years ago and have not had a single problem with the setup. I just turn traction assist off whenever I plan on doing some tire roasting like heating the tires up in the burnout box or whatever. BTW, my 94 also had a 3.31:1 gear set from the factory.

1BADSC
03-11-2003, 12:15 AM
Does anyone have the kit # and where to buy the trac lock kits for the 94-95 auto. And roughly how much.

J57ltr
03-11-2003, 12:18 AM
Kit? What kit? You need a Trac lock carrier.

Jeff

1BADSC
03-11-2003, 12:20 AM
why can't you just get a trac loc kit from summit for 200- 300, they sell many of them

J57ltr
03-11-2003, 12:23 AM
Look it up I think you might be talking about a rebuild kit for an existing Trac Loc carrier. (the one with bearings and stuff)

Jeff

Blownaway
03-11-2003, 12:32 AM
I have a 8.8 posi left over from my 5.0 Capri, it's been reconditioned. Will it work. I'm an SC novice and am not to familiar with the IRS type rear. (it's 28 spline).

J57ltr
03-11-2003, 12:35 AM
I'm not sure on that. I'm pretty sure it won't work, something about the way the circlips are held in place. I'm sure someone with the info will post on that.

Jeff

1BADSC
03-11-2003, 12:43 AM
I am not talking about a rebuild kit becuase what would you be replacing if there is no trac lock there to begin with. I mean like an aftermarket trac lock for an 8.8. Summit sells a bunch of them so does Jegs, or does anyone know of anything else other than changing the whole pumpkin out for a different one.

J57ltr
03-11-2003, 12:48 AM
posi units are around $300-$400. if summit or jegs carry them call them and ask, they will be able to tell you.

Jeff

Blownaway
03-11-2003, 09:46 AM
If I were to get the whole differential (pumpkin) like the one that Ford Motorsport used to offer, How much money are they going for these days? And where can I get one?

OzzManG149
08-31-2003, 02:37 PM
Does any one know if the pumpkin with 2.73 gears was the trac loc also.. Found one for sale was going to put 3.73 in it..

J57ltr
08-31-2003, 04:17 PM
All SC rears are trac loc with the exception of the 94-95 auto's With traction control. A 2.73 would be from a 5speed car.

Jeff

OzzManG149
08-31-2003, 04:27 PM
Thanks for the info so $125.00 would be a good deal then?