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Ford Performance Ring and Pinion Gear Kit - 4.10 Gear Ratio (94-98 GT)

Item 24002G94
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$158.22

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      Review & Installation Video

      Hey, I'm Justin with AmericanMuscle.com, and this is our acceleration pack Bolt-On Build Up for all 94-98 Mustang GTs. Acceleration is the sum of a couple different parts: power, gearing, grip, and of course, driver. And that's what we're going to be addressing here in our '98 GT and our acceleration pack with one exception, the driver. Now, the parts we have lined up will not only help the car accelerate faster, but its also going to help me, the driver, get the car out of the hole and through the gears as quickly as possible. Now before we go nuts bolting everything up, lets get our GT out of the shop and do a quick 0-60 run, just to see where it stands now. Now before we bolt everything up we want to get a quick baseline 0-60 run down, just to see where the car stands now. We're going to do this using our wireless ITSX tuner, and my iPhone, should give us a good idea of where we stand. So, hit start, hold on. Alright, looks like we just clicked off a 7 second flat 0-60 run here with our '98 GT, which isn't too bad, but honestly, we can do better. So, we're going to get the car back in the shop, talk a little bit more about what we have in store for our '98, and then get it installed. Now, when you think of all-out acceleration, what's one of the first parts that come to mind. Well, if you answered gears, then then you're right on the money, at least here with our build. We went with a set of Ford Racing 4.10 gears, and why not since we're looking for maximum acceleration, while still maintaining great street-ability. Now, from the factories, the SN-95s came equipped with anything from a 2.73 rear, all the way to a 3.27, so making the big step up to a set of 4.10s is really going to be the shot in the arm our GT needed to get out of the hole, and on its way to faster acceleration. The next 3 parts all revolve around our shifting experience, and getting that power down to the ground. First up, we went with Exedy's Mach 350 Stage 1 Clutch. Now this clutch is more than capable of power our GT's putting out now, and we have room to grow, just in case we want to experiment with nitrous, or different power routers, down the road. This next part may not be as important as our gears per se, when it comes to all-out acceleration, but it's just as important, especially on our older car here. I'm referring to this Clutch Adjuster Kit, now besides offering a full range of adjustment for your factory clutch pedal engagement, it's also going to beef up a weak link in your factory clutch cable, namely that cheap plastic factory clutch quadrant. Now this plastic part has been known to flex, or even break under hard shifts, and we all know there's no better to kill your acceleration than a missed shift. By replacing those cheap plastic parts with these hardcore billet pieces, and tossing in a brand new clutch cable, well, we're halfway on our way to a better shifting experience. The second part of that equation should be pretty obvious to just about any SN-95 owner. We replaced our factory, schoolbus style shifter here in our SN-95 with this Short Throw unit from SR Performance. Not only will this reduce our throws by about 30-40%, but it's also going to clean up the entire shifting experience, taking all the sloppiness out of our stock shifter, which is going to make it a lot easier for me to bang through the gears, when we're doing a hard pull. All this for a price that's very hard to beat. With our quickshift goodies in place, the grip of the clutch, and those gears, we should be well on our way to some lower ET's off the line. I guess there's really only one way to find out, so let's get our GT out of the shop one more time, do another blast to 60, and see if we improved our times. Alright, so it looks like we just clicked off a 6.3 0-60 run, with our acceleration pack installed. That's nearly a full second difference over our baseline times, and it's just proof that our acceleration pack is doing a great job. I mean, the clutch was grabbing hard off the line, and we were really rolling through those gears with the SR Performance Shifter. So that wraps it up here with our acceleration pack for the 94-98 GT. Be sure to check out some of our other Bolt-On Build-Ups as well, where we work on our appearance, and our handling.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Ford Racing Quality
      • Strong Forged Construction
      • 4.10 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Fits 1994-1998 GT and Cobra Mustangs

      Description

      Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

      Superior Quality. These Ford Racing 4.10 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

      Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a new Speedometer Gear is an inexpensive way to fix this issue.

      Application. This Ford Racing Ring and Pinion Gear set will fit all 1994 to 1998 V8 Mustangs including the GT and Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

      Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.

      Fitment: 1994 1995 1996 1997 1998 Details

      MPN# M-4209-88410

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.9

      Customer Reviews (58)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 58 customers

      Installation Time: Weekend

      Installation Cost: $250-$500





      • February 06, 2019

        5 1998 GT - RichardK Installation Time: Shop Install Installation Cost: $250-$500

        4.10s

        great gears..what a difference in take off compared to the orig gears.

        Helpful (2)
      • February 02, 2018

        5 1994 GT - JosephO Installation Time: Full Day

        Great Buy

        These gears are awesome! Really wakes up the car when you get on it and go into each gear. Highly recommended! The American Muscle Team was also extremely helpful.

        Helpful (6)
      • July 20, 2017

        5 1995 Cobra - raun Installation Time: Shop Install Installation Cost: $250-$500

        1995 cobra

        I went from 3.73 to 4.10 and I'm so glad I did. With my 2.95 1st gear tranny it did the trick. When I shift into next gears the rpms are at just the right sweet spot. Very happy.

        Helpful (6)
      • June 23, 2017

        5 1994 GT - RyanM Installation Time: Afternoon

        Great product

        I went from 3.55s to the 4.10s and it made a world of difference. It pulls a lot harder low end but is still good for a daily driver

        Helpful (6)
      • May 18, 2017

        5 1994 GT - RogerC

        Don't fear the gear

        American muscle sent my part within a couple days looks good can't wait to install no hassle or long wait

        Helpful (6)
      • January 01, 2017

        5 1998 GT - Jay53 Installation Time: Full Day

        Great mod!

        Well these gears are pretty nice. I haven't really stepped on it yet but I can instantly tell a big difference. My uncle and I did the job ourselves. And jeez! That's probably the most difficult thing I've done yet mechanically. Took us a full day.

        Helpful (6)
      • September 04, 2016

        5 1997 GT - 2vGT

        4.10 Gear

        Great gear over stock if you drive highway and want your car feeling more powerful. Terrific on a stock car. 4.56 would be recommended if highway driving is rare to none. If gas mileage is a big enough issue then gears are not for you.

        Helpful (6)
      • May 07, 2016

        5 1993 Other - Tito

        4.10

        American muscle has some super fast shipping. These gears are awesome. Thanks!!!

        Helpful (6)
      • March 05, 2016

        5 1995 GT - Jorge Installation Time: Afternoon

        Goona need new tires....lol

        Smokes tires through 3rd gear..Hands down best upgrade for you mustang. Great value..Like always the customer service at AM is second to none. Great team great company...Thanks again

        Helpful (6)
      • January 03, 2014

        4 1998 GT - MrGT Installation Time: Weekend

        Wow best performance gain

        Very time consuming.. I recommend you go to FORD.COM for instructions. I had to open it up twice do to specs, And noise. Not much noise now but a tad bit were I only notice. You feel the instant performance gain, these really throw you back in you're seat.. With the right tiers... Slicks It was hard to install FYI but it was my first rear end.

        Helpful (8)

      Questions & Answers (11 answers)

      5 Top Rated Questions

      I have a 1998 mustang automatic GT and I have 4.10 gears. What will I need to fix the speedometer

      I have a 1998 mustang automatic GT and I have 4.10 gears. What will I need to fix the speedometer

      • We recommend a tuner like the SCT X4 which will be able to correct the speedometer: https://www.americanmuscle.com/x4-custom-tuner-9698gt.html.

      Helpful (0)

      I have a 95 Mustang GT automatic and I’m putting in 4.10 gears do I need the installation kit as well? And also what do I need to keep the speedometer correct and where can I buy it?

      • We would recommend purchasing the installation kit as well to have all new parts in the rear end when you upgrade the gears. As for the speedometer correction, you would either be able to get a tuner to correct that issue or a speedometer gear which you can find here at this link: https://www.americanmuscle.com/94-98-mustang-gears.html#shop-by8

      Helpful (0)

      I have a 98 mustang gt with a 5 speed trans. What do I need to change for the speedo to be correct? Going with 410’s. Thanks

      • When installing a 4.10 Ford Performance Ring Gear and Pinion Kit on your 1998 GT you will need a 20T speedometer gear, paired with a 6T drive gear.

      Helpful (0)

      I have a 1998 Mustang Cobra with a stock differential. I am looking to install a 4.10 gear and I was wondering if I have to change my carrier? I had a mechanic tell me that I had to change the carrier if I wanted to fit the 4.10 gears inside. Is this true?

      • Since you are looking into making a gear change in your Mustang, you will need to change the carrier out when installing a bigger gear such as these 4.10's.

      Helpful (0)
      Post Your Question
      6 More Questions
      What speedometer gear will i need? I am looking to upgrade my manual '98 Mustang GT's stock gears to the 4.10 gears. What speedometer gear would I need to get? Thanks. 1 answer
      Will this improve or slow down me 1/4 mile time. I know it will help with acceleration but I noticed the will be going 75 in 4th gear. Somebody help me out thanks ! 1 answer
      What speedo gear would I need if I were to put 4:10's in my 1996 Mustang Gt 5 speed? I would like the speedometer to be somewhat accurate. What speedo gear would I need if I were to put 4:10's in my 1996 Mustang Gt 5 speed? I would like the speedometer to be somewhat accurate. 1 answer
      speedo gear? Looking to upgrade from the stock 2.73s to 4.10s, I have the 4 speed auto AODE trans, what speedo gear will I need so my speedometer will be on par with the upgraded gears? 1 answer
      Do I need to buy the installation kit and bearing kit or just the installation kit? I was looking to buy some gears sometime soon and I am not sure if I need to buy the installation kit and bearing kit or just the installation kit? I currently have 2.73s in my car and they are starting to whine, I'm not sure if any of that would make a difference. Also could you explain your answer? Like why do I need the bearing kit (if needed) and if its not need why would I need it? Thanks! 1 answer
      What will this do to the gas mileage on my '95 5.0? Will my gas mileage get worse? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Ring gear
      • (1) Pinion gear

      Tech Specs

      Approximate RPM for 1994-1995 GT


      Manual
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 4261 5965        
      2 2516 3523 4529 5535 6542  
      3 1682 2354 3027 3700 4372 5045
      4 1264 1770 2276 2782 3287 3793
      5 847 1186 1525 1864 2203 2541


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3034 4248 5462 6676    
      2 1854 2596 3338 4080 4821 5563
      3 1264 1770 2276 2782 3287 3793
      4 843 1180 1517 1854 2192 2529


      Approximate RPM for 1996-1998 GT


      Manual
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 4274 5983        
      2 2529 3540 4552 5563 6575  
      3 1669 2337 3004 3672 4339 5007
      4 1264 1770 2276 2782 3287 3793
      5 860 1204 1548 1891 2235 2579


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3591 5027 6463      
      2 1960 2744 3528 4311 5095 5879
      3 1264 1770 2276 2782 3287 3793
      4 885 1239 1593 1947 2301 2655

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