Hey, I have a question about gears for my mustang. I Put on all of the mods on my car myself. i know a lot about my car especially all of the mods i put on it. And ive never payed anyone to do installation, except the true dual exhaust system. but as i read the posts about gears, im confused. can anyone tell me the concept of the gears and what would be the best decision, performance-wise, on what gear(s) i should get? thnx
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2006 Black Mustang, 4.0 V6 Manual VORTECH V2 SUPERCHARGED Mods for the Stang: Center Style Shelby Grille w/foglights, Sequential Tailights, GT Rear Bumper, True Dual Flowmaster Exhaust w/Magnaflow Tips, Momo Manual Shifter Knob, 8 Inch Shorty Antenna, Black Painted Calipers, Quarter Panel Black painted Window Louvers, JBA V6 Shorty Headers, Rear Window Louver, GTS Tail Light Blackout Covers,DiabloSport tuner, White Side Stripe Delete,
I ran 373:1 gears in my V6 and installed a trac-lok at the same time(the V6 has an open rear end). The accelleration was greatly improved and it didn't affect the highway driving too bad. I recommend having someone install them that has done it before. If you don't set the gears up correctly you will have problems including premature wear and noise. Plus you need specialty tools to do so.
well im kinda new, actually a major newb when it comes to tht stuff. what does the gear ration mean on the gears, and wats a t-lock? is it just one gear i buy or...?
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2006 Black Mustang, 4.0 V6 Manual VORTECH V2 SUPERCHARGED Mods for the Stang: Center Style Shelby Grille w/foglights, Sequential Tailights, GT Rear Bumper, True Dual Flowmaster Exhaust w/Magnaflow Tips, Momo Manual Shifter Knob, 8 Inch Shorty Antenna, Black Painted Calipers, Quarter Panel Black painted Window Louvers, JBA V6 Shorty Headers, Rear Window Louver, GTS Tail Light Blackout Covers,DiabloSport tuner, White Side Stripe Delete,
alright, i have the same car as you, we both have bad rear ends, it has an open diff. which allows power to switch from one wheel too another for turns or just loss of traction. With a T-lok it gets rid of the open diff for a limited slip diff (LSD, or a posi track to chevy drivers) which just spins both rear tires at the same rate allowing for 2 wheel burnouts, and faster acceleration*, good for drag or drifting but probably not high speed cornering.
I might have this backwards but i believe that the lower gear ratio -the faster low end speed and vica versa
so if u do alot of highway driving and its ur daily car, probably not the best choice because you will have higher RPM's at lets say 65 mph with the low gears than stocks. and with rising gas prices thats kinda a big deal.
but if u want high end speed, than the higher numberd gears i believe are more your route
If im wrong please somone correct me, but im fairly confident thats what it is.
Well your car comes stock with a 3.31 rear end gears so, the ratio is 3.31 to 1. That means every time the drive shaft rotates once the tires will rotate 3.31 times. installing a taller gear will let you accellerate quicker without increasing HP. If you go to a gear that's too tall your rpm's will redline on the highway. From my experience I found 3.73:1 to be a good gear for the basically stock V6. My car had a high flow intake, cat-back dual exhaust, off road h-pipe, chip, gears, traction lock, underdrive pullies and I think that's it. Anyway, It was a fun car for a V6. The GT's come from the factory with a traction lock or limited slip differential. This puts the power to both rear wheels. When a vehicle is negotiating a corner, the outside wheel has to travel a greater distance than the inside wheel. Therefore the outside wheel must turn faster than the inside wheel. The differential is the device within an axle assembly that differentiates the wheel speed between the two wheels. The differential also transmits the power from the ring gear to the axle shafts and determine how much power is delivered to each axle. Limited slip type differentials add a friction medium to the assembly to maintain equal power to both axles even if one tire begins to slip. When load is applied to the differential, the friction plates are also loaded, causing a good positive power flow to both tires. I don't know if you have tried to do a burn out in your car but, you may have noticed that only one tire leaves a trail of rubber. If your going to do the rear gears you should do the differential at the same time to save on labor. This will give you added traction for standing starts. I think the limited slip diffs are only a couple hundred dollars and if you decide to run a power adder in the future (ie. nitrous or supercharger) you'll be glad you put this in. Check out Reider Racing is your source for all you drive train and differential needs they helped me out in the past.
alright, i have the same car as you, we both have bad rear ends, it has an open diff. which allows power to switch from one wheel too another for turns or just loss of traction. With a T-lok it gets rid of the open diff for a limited slip diff (LSD, or a posi track to chevy drivers) which just spins both rear tires at the same rate allowing for 2 wheel burnouts, and faster acceleration*, good for drag or drifting but probably not high speed cornering.
I might have this backwards but i believe that the lower gear ratio the faster low end speed and the lower high end speed and vica versa
so if u do alot of highway driving and its ur daily car, probably not the best choice because you will have higher RPM's at lets say 65 mph with the low gears than stocks. and with rising gas prices thats kinda a big deal.
but if u want high end speed, than the higher numberd gears i believe are more your route
If im wrong please somone correct me, but im fairly confident thats what it is.
The 2.73:1 will net higher MPH ie. 160 mph and the 3.73:1 will net quicker acceleration but lower top speed ie. 125 mph
Well your car comes stock with a 3.31 rear end gears so, the ratio is 3.31 to 1. That means every time the drive shaft rotates once the tires will rotate 3.31 times.
Actually it's the other way around. The axle will rotate 3.31 times for a single wheel rotation
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Originally Posted by IdriveFords
installing a taller gear will let you accellerate quicker without increasing HP.
You actually lose a little RWHP at you step up in gear but it sure doesn't feel like it.
I know someone has posted something on this before, but I've forgotten. When making the switch from the stock gears to 3.73, as I recall on the GT the rpm at 70 mph was up about 500. Does anyone know how big the difference in rpm would be switching from the V6 3.31 gears to 3.73?
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2005 Torch Red V6 Convertible, premium interior with dark charcoal leather. PIE aux input adaptor/XM SkiFi3, GT muffler, K&N drop in air filter, GT front and rear sway bars. CAI and tune in the near future!
I know someone has posted something on this before, but I've forgotten. When making the switch from the stock gears to 3.73, as I recall on the GT the rpm at 70 mph was up about 500. Does anyone know how big the difference in rpm would be switching from the V6 3.31 gears to 3.73?
About 350 rpm in 4th gear at 70 mph. (~2900 - ~3250)
thnx this info has helped a lot, im looking forward hopefully putting some in as soon as i get a job. but ive heard of the 4.10 size gear. would tht be one to get for a lot better acceleration?
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2006 Black Mustang, 4.0 V6 Manual VORTECH V2 SUPERCHARGED Mods for the Stang: Center Style Shelby Grille w/foglights, Sequential Tailights, GT Rear Bumper, True Dual Flowmaster Exhaust w/Magnaflow Tips, Momo Manual Shifter Knob, 8 Inch Shorty Antenna, Black Painted Calipers, Quarter Panel Black painted Window Louvers, JBA V6 Shorty Headers, Rear Window Louver, GTS Tail Light Blackout Covers,DiabloSport tuner, White Side Stripe Delete,
thnx this info has helped a lot, im looking forward hopefully putting some in as soon as i get a job. but ive heard of the 4.10 size gear. would tht be one to get for a lot better acceleration?
Absolutely... 4.10s are great for a naturally aspirated car.
I have 4:10's and a trac-loc in mine. With a tune it makes a huge difference. I had a guy with a GT and Auto Tranny like my V6 has. He was bitching about not being able to burn the tires from a dead stop. I told him I can in mine with no problem. After he drove in mine he went right down and got a tune and 4:10 gears. It kills your gas mileage but makes it fun to drive for sure. By the way, nobody tells you this but, you cannot get the speedometer correct after switching the gear ratio without using some type of tuner like the preditor. At least, the dealer told me that on the V6 it is not even an option on their original factory tune to set the gear ratio to 4:10. It's easy to do with the Diablosport preditor though.
T-Loc is not an issue. But you need to look for an axel ratio setting. Mine shows up in the preditor as 4:09 not 4:10. But then I just chose it and saved the tune and my speedo is correct again.
Help with gears for the 2006 v6 mustang? 
