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Performance Automatic Street/Strip Automatic Transmisson Shift Kit (01-04 All, Excluding Cobra)

Item 62711
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    Features & Details

    • Tire Chirping Shifts
    • Strong, Positive, Crisp Shifts
    • Perfect for Street and Strip
    • Extends Transmission Life
    • Transmission Removal Not Required
    • Fits 2001-2004 Automatic V6, GT and Mach 1 Mustangs
    Street And Strip. Upgrade your automatic transmission for firmer, positive, tire chirping shifts with a Performance Automatic Shift Kit that is perfect for Street and Strip.

    Extends Transmission Life. A Valve Body Shift Kit not only improves the your driving experience, but it also extends the the life of your transmission by eliminating shift overlap and speeding up actuation of the shift reducing unnecessary wear.

    Application. This Performance Automatic Valve Body Shift Kit is specifically designed for the 2001 to 2004 Mustangs equipped with a 4R70w automatic transmission, including the V6, GT and Mach 1.

    Fitment: 2001 2002 2003 2004 Details

    MPN# PA45418

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (4) Valve body plates
    • (7) Springs
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (13)

        5 Top Rated Questions

        How does this work coupled with a Bama or similar tune? Does a shift kit do basically the same thing regarding shift points and firmness as a custom tune, or are these coupled together even better.

        • This Performance Automatic Street/Strip Shift Kit (01-04 GT, V6, Mach 1) is going to make physical changes to your transmission to help firm up shift points, strengthen your transmission, and help bring shift times down. This kit paired with a custom tune will bring a much larger benefit than just one of them alone.

        Helpful (5)

        Is the automatic street/strip kit the same as the automatic valve body Hey, I just had a question wondering what is the difference between the street/strip automatic valve body kit and the street/strip shift kit. Would I need to buy just one or am I able to buy both and install them. Thanks and hopefully this isn't too dumb of a question.

        • Well, they are kind of one in the same. The Performance Automatic Street/Strip Shift Kit (01-04 GT, V6, Mach 1) is what you would purchase if you were interested in taking your current valve body and replacing the innards with this upgraded shift kit. However, if you needed and brand new valve body, it would come already upgraded.

        Helpful (4)

        Is putting a improved shift kit in a transmission with 124k miles a good idea or do you recommend rebuilding it first?

        • Depending on use and maintenance, the Performance Automatic Street/Strip Shift Kit should be fine in your transmission, however we recommend having a shop check the transmission over to make sure it is in good condition.

        Helpful (1)

        Will this fit a 4R75w, or simply not work as well? I have an 04 GT and would like to install this, but not sure if 1) I absolutely have a 4R75w vs 4R70w - how can I tell. No reliable info out there; and 2) will it still fit if it's a 75, but not work as well? Several reviewers have 04 GTs so I am confused.

        • From what I understand, the 75 is the same thing as the 70. Some late 2003's got the 75 and all 2004's got the 75, but the late 2003 and early 2004's got all the 75 without the extra sensor (OSS) and the mid-to-late 2004's got the extra sensor. The 75 is simply the 70 with beefed-up in internals (namely a 24-spline shaft vs the 6 spline of the 70). This is what I've gathered as I've been looking around for rebuilds and torque converters for my transmission.

        Helpful (1) Show 2 more answers

        Will this work on an '04 GT? I understand the 4R75W is excluded, but several reviews are from '04 GT owners. I thought all '04s had the 4R75W. If this is not the case, how can I determine if I have a 4R75W v. 4R70W?

        • The Performance Automatic Street/Strip Shift Kit (01-04 GT, V6, Mach 1) definitely works for 04 GTs.

        Helpful (1)
        Post Your Question
        8 More Questions
        will this work better with stock gears or 3:73s Like is it meant for stock or aftermarket 1 answer
        Do you have trouble taking off if you aren't completely stopped? For Instance if you are approaching a red light and right when your about to stop the light turns green, when you hit the gas will it go or will you have to stop completely and then take off? The reason I ask this... Read the review to the previous link. I know that is for a V8 but I wanted to know if it is having the same effect on the V6. 3 answers
        Does the kit need a tune to operate correctly? Or can this be installed without a tune? 1 answer
        How does this shift kit compare to the J-mod? It this just a cheat allowing you not to have to drill out you plates? 1 answer
        Does this go on an automatic transmission? 1 answer
        Is this technically a JMOD kit then? 1 answer
        Is this ok to put into a daily driver, or will it hurt the transmission rather than help it? 1 answer
        Is it recommended to add a deep transmission pan in combination with this shift kit? Would this shift kit raise the temperature any higher than it would be stock? Because I noticed some people adding a tranny cooler or a deeper pan 1 answer

          Customer Reviews (29) Write a Review

          Ratings Summary

          4.4 out of 5 overall rating from 29 customers

          Installation Time: Full Day

          Installation Cost: $100-$250

          • December 09, 2019

            5 2003 GT - WalterP

            Stolen Kit

            Purchased the kit and hired a shop to install. Had a funeral to attend in another state, returned home to find the shop doors shuttered, tranny out of my vehicle, and kit gone. Looked foward to testing the kit.

            Helpful (0)
          • July 11, 2018

            5 2003 V6 - DelM Installation Time: Full Day

            Rubber in 2nd gear

            This kit gave my v-6 Mustang a good solid hard shift when really getting on it, squawking the tires when you hit 2nd. Couldn't be happier with the performance of this shift kit.

            Helpful (3)
          • March 29, 2018

            4 2004 V6 - BrandonS Installation Time: Shop Install Installation Cost: $100-$250

            Performance Automatic shift kit.

            It came fast and is a great product I can definitely tell a difference in my mustang shifts now. Shifts hard and firm launches car forward with every shift definitely recommend.

            Helpful (4)
          • March 11, 2018

            5 2002 GT - StambaughC Installation Time: Afternoon

            I love it

            Work great really woke up my transmission. Thank AM

            Helpful (4)
          • July 28, 2017

            5 2003 GT - Dee

            Great product

            Loved it enoy it everyday...the best..not a waist of time or money...great does exactly what they say

            Helpful (3)
          • June 15, 2017

            1 - JakeW Installation Time: Full Day

            2004 mustang Gt

            Well let's start by saying when I received this kit it came wit no instructions, so I contacted AM and they say they don't have them and to contact the manufacture, so I did, still no instructions, so after digging on the internet I find similar instructions then come to find none of the springs in the kit I received fit my transmission. And yes I have a stock 4r70w trans that's now disassembled thanks to AM

            Helpful (10)
          • May 28, 2017

            5 2002 GT - 2002stang Installation Time: Afternoon

            Great product.

            Nothing to say except another quality product from AM. Thanks.

            Helpful (3)
          • April 29, 2017

            1 2004 GT - TrentR

            Ripped gasket

            My shift kit came with a ripped gasket anyway I can get a new one?

            Helpful (6)
          • March 10, 2017

            5 2002 GT - ShawnM Installation Time: Afternoon

            Shift kit

            Love it 2002 mustang gt automatic very sluggish changing into 2nd and 3rd car only has 89,000 miles installed the kit and BAM 2nd and 3rd it's sideways thanks AM.

            Helpful (4)
          • February 08, 2017

            5 1998 V6 - NimaE

            Absolutely worth it

            Once you get it put in, tune the car, it'll go from sluggish, to lighting fast shifts, absolutely love it

            Helpful (5)
          • November 01, 2016

            5 2001 GT - Wkrichard Installation Time: Full Day

            fast shifting...

            It's not ship to install but it worthy .$ motorcraft oil new filter .you will fill the huge difference right shifting will love it ! ..

            Helpful (5)
          • October 07, 2016

            5 2001 GT - Papito

            Greatest product for your Mustang!

            First of all, AM shipping is outstanding! I ordered it on a Wednesday and got it that Friday! Amazing! I had it put in a few days after I purchased it and I can definitely feel the difference! I paired it with a BandM ratchet shifter and it makes my automatic feel like a whole new car! Nice, tire chirping, firm shifts! Definitely would recommend if you want to have fun in your automatic GT! Thanks AM!

            Helpful (5)
          • August 12, 2016

            4 2003 GT - Roger

            Improved Shifting

            Instruction illustrations could use some improvement. But all in all the installation went smooth. Shifting is tighter.

            Helpful (5)
          • August 31, 2015

            5 2002 V6 - MVFast02V6 Installation Time: Full Day

            Worth it when coupled with other things...

            My transmission was rough shifting and seemed to be sticking solenoids, so i figured time to change them (195K mi). I figured while i was under there would be a perfect time to install this shift kit. It seemed overwhelmingly complicated at first but I (who am not a trans person) was able to work my way through it. This kit coupled with new solenoids, 2 bottles of Lucas stop slip, fresh Castrol Mercon V and Trans filter has brought a fresh breath of life back into my transmission!! It operates so smoothly now, it hard shifts because of the kit but its a smooth hard-shift not one that feels like doom for your trans. I would highly recommend to anyone with a 4R70W transmission this kit and service the filter and solenoids (if high millage) and definitely some Lucas!

            Helpful (5)
          • December 22, 2014

            5 2001 GT - Junylajara Installation Time: Afternoon

            2001 Mustang Gt Convertible

            This is a great product that every mustang owner should consider! Specially if you've upgraded to 410 gears as i did. All i could say is "wow", my car feels much more powerfull when it shifts and even chirps the tires. Only wish Performance Automatics would've included some instructions, diagram or something to save some time. Other than that it's a great product! Thank you American Muscle!

            Helpful (6)
          • October 22, 2014

            5 2001 GT - tat2 Installation Time: Afternoon

            great shift kit!!

            For the price this is a great deal. Easy to install and made a world of difference in my tranny. Thanks American Muscle!!

            Helpful (4)
          • September 19, 2014

            4 2004 V6 - JohnnyBelleair Installation Time: Shop Install Installation Cost: $100-$250

            Big improvement over stock

            Had this installed by a transmission shop that was highly recommended by more than one person I asked who they would trust to do the job. The shop has done "dozens" of shift improvment kits. I paid the extra for synthetic fluid, and the car already had a transmission cooler installed after the radiator cooler. I'm very slightly disappointed. After reading the reviews here I expected some neck-snapping tire-chirping hard-hitting shifts, especially the 1-2. Yes my 04 is a V6 and I am taking into account it doesn't have the power to blast the tires loose when I feel like it. Although the kit did significantly improve the shifting over the mush-box that was stock from Ford, I didn't get those head-banging shifts. They are firm and tight, and happen a LOT faster than stock. The car is much more pleasant to drive now, and that two second "which gear do I really want to be in" that was so embarrassing is gone. I'm (by a great majority) pleased with the results, and definitely happy I bought it. That tiny disappointment is there though. Just keep in mind, you're results may vary from what other reviews say, as mine did.

            Helpful (5)
          • August 25, 2014

            5 2004 GT - fransauce Installation Time: Shop Install Installation Cost: $250-$500


            WOW!! this is by far the best purchase for an automatic known to man... shop took only 3 hours to install it and it's worth every penny... MUST HAVE for automatics

            Helpful (4)
          • July 20, 2014

            4 2001 GT - fakesrt Installation Time: Full Day

            The only shift kit I could find for this transmission

            The instructions are very limited if you have not done this mod before. The instructions assume that you already have the valve body out of the transmission and laying on the bench. They also assume that you have prior knowledge of the internal components of an automatic transmission. Like where is the 1-2 accumulator piston ? This is a great kit but instructions are not for the beginner. Also, for the price a few drill bits should be provided.

            Helpful (3)
          • July 10, 2014

            4 2003 V6 - xfree143 Installation Time: Full Day

            Shift Kit 2003 V6

            It took all day but overall not bad. The trans fluid mess was the worse thing. Dropped 11 qts during the change. Most likely I had some of the cooler drain back. The shift change was not major, but I put in a Bama tune a few days later and that made a huge difference. so recommend doing both at the same time.

            Helpful (4)

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