Gear ratio for Fox Bodies
 

Did any of the 87-93 5.0 LX verts come with 3.73's from the factory?????? Or any model in general actually.

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1997 Cobra (Black on black), C+L 80mm MAF, K+N filter, Pro 5.0 shifter, BBK Springs, Taylor Wires, 2 Chamber Flows, ASP Pulleys, BBK off road H pipe.

Now im not 100% sure but I thought that all the fox mustangs came with 2:73's ot 3:08's. Least thats what I have been told.

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347 Stroker Motor: Balanced, 30lb Bosch Injectors, Cobra Computer, Cobra Transmission, GT40 Ported and Polished Upper and Lower, GT40 Milled Ported and Polished Heads, B303 Cam, BBK 1 5/8 Headers, March Underdrive Pulleys, Electric Fan, Accel Performance Coil, Accel 300+ Racing Wires, NGK Plugs, Ram Air, K&N Filter, 77mm Mass Air Unit, FlowMaster Exhaust w/offroad H-Pipe, Hurst Short Throw Shifter, 3:55 Gears, Ram Clutch, Cross Drilled Rotors, High Tolerant Painted Calipers and Drums.

The standard stock setup was 2.73, and most are that. You could get 3.08 or 3.27 from the factory, I have no idea how though.

From what I remember, 2.73's were standard on all models, 3.08's were optional on coupes and hatches and the 3.27 was only avaliable on AOD verts, but I could be wrong

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1965 K code coupe - numbers matching - restoration ongoing. 1987 LX notch, 5 spd, stock heads (minor porting) and intake, 65mmTB, 3.55's, ram air, pulleys, shorty's, 2.5" exhaust with cats 13.89@100.25

2.73's came on the later (87-90) fox bodies, 3.08's came on the newer ones (91-93), i believe the change was made due to the fact that GM switched to 3.08's on the camaro's and firebirds, and 3.27's came optional on the AOD GT's, 91-93 and they need it too!

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'93 Gt, Stock as a rock, but plan an AOD to T-5 swap, steeda tri-ax shifter, 3.55's, cobra intake, gt-40 irons, e303 cam, 1.6 rr's, mac headers, off road h-pipe, flowmasters cat back, msd ignition, blaster coil, mac cold air box (fenderwell), eibach springs, silver cobra r's, and an obnoxiously large mustang in the back window =0)

In the door panel tag you will see a box for axle code..."ax"
m=2.73
z=3.08
e=3.27 (AOD only)



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4.10's,long tubes & 75 shot...Goes 12.50's
Check it out at http://www.burnouts.webprovider.com

5 speeds were 2.73 standard with 3.08 optional. Auto's had an optional 3.27. Nothing higher than that has been in a Fox Mustang, or any Mustang since for that matter.

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1991 LX Hatch 5.0L

Re: Gear ratio for Fox Bodies
 

2.73:1 is stock for all 5spd cars, 3.08:1 is stock for all automatic cars, 3.27:1 was an option for all cars i think, possibly for the auto verts n i think the 93 cobra r's had them too, cant remember but i used to know. the reason for the 3.08's is the obvious, to take up the slack in the gearing of the auto trans. 3.55's fit right in out of f150's so u see alot of mustangs for sale advertiseing 3.55's to the point where ppl think they came from factory with those. I think thunderbird sc's have 3.27's stock. ford explorers have 3.73's in a 8.8 inch diff, explaining y so many ppl have those gears in their stangs now. 4.10's can probably be found in f150's with a tow package. Oh and rangers have 3.73's too!