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Steeda Underdrive Pulleys (96-Mid 01 GT)

AmericanMuscle no longer carries the Steeda Underdrive Pulleys (96-Mid 01 GT). Please check out 1999-2004 Mustang Underdrive Pulleys for an updated selection.

Features & Details

  • SFI Approved
  • 8 - 10 RWHP Recovery
  • Improves Fuel Economy
  • 25% Reduction in Parasitic Accessory Drag
  • Exceeds OEM Material Specifications
  • Reuses Stock Belt
  • Fits 1996 to Mid 2001 GT Mustangs
Regain Lost Power. Get back the power and torque your belt-driven accessories steal. As hard as it may be to believe, you can regain from 8 to 10 "free" horsepower with Steeda's underdrive pulleys. These pulleys reduce engine parasitic drag from your accessories by about 25% and even improve fuel economy.

Superior Materials. Steeda underdrive pulleys are manufactured from nodular iron, and far exceed the quality of the stock pulleys. The one-piece crankshaft pulley uses a high-tech injection molded bonded rubber damper, making it far more durable than other manufactures "piggyback style" underdrive pulleys.

SFI Approved. Steeda underdrive pulleys are SFI approved for use by all major race sanctioning bodies.

Application. These Steeda Underdrive Pulleys are specifically designed for use on the 1996 to Mid 2001 4.6L V8 GT Mustangs and reuse the stock belt.

Note: Coupon codes cannot be applied to this product.



Technical Note. Midway through the production run for the 2001 model year Ford changed the design of the water pump on the 4.6L engine. The older style pump produced from 1996 to mid 2001 had a longer shaft. In January of 2001 the design of the pump was changed to a shorter shaft. This necessitated a change in the design of the pump pulley.

Click here to see pictures of the different pulley styles.

Fitment: Details

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

What's in the Box
Hardware included:
  • Crankshaft pulley
  • Water pump pulley
  • Alternator pulley
  • Crankshaft pulley starter bolt*
* must be removed after seating pulley
Installation Info
Tech Specs
UnderDrive Pulley Specifications
Year/Model: 96-mid01 GT Manufacture: Steeda
Material: Steel Finish: Black
Crank Pulley: One Piece Crank SFI Certifited: Yes
Will it fit my Mustang?

    Customer Photos (17) Submit Your Photo

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      Questions & Answers (9)

      5 Top Rated Questions

      Will the water pump pulley included in this give me anymore clearance than my stock water pump pulley? I have a forward facing turbo kit and I’m having trouble fitting the turbo blanket between the bolts on the stock water pump pulley and my blanket. Trying to avoid any rubbing or shredding of the blanket. Thank you

      • This would not give you additional clearance over the stock pulleys.

      Helpful (0)

      Will the water pump pulley included in this product give me anymore clearance than the stock water pump pulley ? I have a forward facing turbo and I’m having trouble fitting the turbo blanket between the turbo and pulley without the bolts on the stock pulley rubbing ?

      The crank pulley is not actually a harmonic balancer. It is in fact a crank pulley correct?

      • The Steeda Underdrive Pulleys will include a SFI approved crank pulley/balancer combo

      Helpful (0)

      Will this kill my alternator and/or battery significantly faster than factory size pulleys? 99GT

      • This will not kill your battery faster no.

      Helpful (0)

      does it come with an install guide to see for torque specs? also it the same length as OEM

      • The Steeda Underdrive Pulleys will include an installation guide. This can be seen at the link below: https://lib.americanmuscle.com/files/16088-manu.pdf

      Helpful (0)
      Post Your Question
      4 More Questions
      Is the crank shafts pulley the same thing as the hermonic balancer or does it replace it on a 1998 mustang gt cause that's where my hermonic balancer goes? 1 answer
      Does this require a tune or would a tune be beneficial with this? 1 answer
      Sound System I have 2 10' subs, a 800w amp and a 600w amp. Should I be worried about buying a more amperage alt? 1 answer
      crank pulley bolt do u need to get a new one. 3 answers

        Customer Reviews (69) Write a Review

        Overall Rating 4.7

        out of 5 stars

        Installation Time:Afternoon

        Installation Cost:0-$100

        • Performance Gain 4.428571 4.4
        • Fit 4.771429 4.8



        • 5/5

          Installation Time: Less than 1 Hour

          March 14, 2019

          Steeda under drive pulleys

          Quality product easy installation, AM always has good products

          DamonO

          Year: 1999 Submodel: GT

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          December 28, 2018

          Car underdrive pulleys up grade

          This is a lot better pulleys than the piggy back than what I had on my 1999 get but the finish on the alt and water pump pulleys was not good had to refinish

          MikeT

          Year: 1999 Submodel: GT

          Helpful (5)

        • 4/5

          Installation Time: Shop Install

          Installation Cost: 0-$100

          May 22, 2018

          Steeda Pulley

          Definite change in the pier band. Working through 1 and 2 gears it was noticeable indeed. Also on the highway a drop was observed in the RPMs while at speed Would recommend

          Keeper1200

          Year: 2000 Submodel: GT

          Helpful (4)

        • 4/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          May 01, 2018

          Good pulleys

          Didn’t really notice any power gains, but it fixed the noise my old pulleys were making.

          JakeM

          Year: 2001 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Less than 1 Hour

          March 28, 2018

          Steeda Underdrive Pulleys

          Easy install,no problems at all. Wanted Motor to have a Balancer ,not a bolt on pulley. Getting ready for more Horsepower

          Revvv

          Year: 1997 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          October 13, 2017

          Car enthusiasts

          Great buy this pulley is not a piggy back pulley like the BBK it's a full crank shafts pulley- harmonic balancer great buy if your looking to replace your old balancer but if your doing this on a automatic car be aware it's much more difficult because the engine will keep turning when trying to remove - install the hermonic balancer that and you will need impact gun for the alternator bolt. This is a two man job so good luck I did it buy myself but still needed some extra hands.

          brandonn

          Year: 1998 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          September 17, 2017

          Steeda Pulleys

          Heavy duty pulleys, had to rent a 3 bolt removing tool from neighborhood auto parts store.

          DominickS

          Year: 1996 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Less than 1 Hour

          September 14, 2017

          Nice little bump in horses

          Better than the other pulleys no piggy backing. Gave it a nice little bump in horsepower.

          Billythekid87

          Year: 2000 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Less than 1 Hour

          July 05, 2017

          nice

          betterthanstockanddressesupfrontofenginerealnice!!!!

          2000gtvert

          Year: 2000 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Afternoon

          March 20, 2017

          There is a difference!!

          Since 2010 I have had a what I'm going to call a hard mount under drive pulley set (not going to say brand name) meaning there is no damper in the crank pully. At first I had no issue to speak of and didn't know there would be any future ones. About 60k miles later on a brand new motor my oil pump failed and lost the motor do to spun main bearing. I found it odd that it did (had to much have between the gear pump witch ended in time with no/or low oil pressure. I then built a filling forged border .020 over motor and as the mouths went by and waiting on parts and money I found out the a hard mount crank pulley will take the engines vibration and put it back threw your oil pump since it dose not have a damper to absorb, witch in time will make a oil pump fail. So I bought these Steeda and there is a difference in feel quality and manufacturing as well as peace of mind knowing my motor is safe. Invest your hard earned money smart and do it right the first time because the second time it is alot more costley.. I highly recommend these over any other set on the market to date.

          JCFish

          Year: 1999 Submodel: GT

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          March 09, 2017

          I think these are a must

          I have two Mustangs and I got to say these pulleys definitely make a difference on the motor as far as not putting so much stress on the engine as it runs it idles lower in my opinion if you want your motor to last longer these pulleys are definitely a must do for the money they look good also

          domlee

          Year: 1999 Submodel: GT

          Helpful (2)

        • 4/5

          Installation Time: Less than 1 Hour

          March 02, 2017

          Steeda under drive pulleys

          Really well designed and easy install. As long as you know what your doing this is a quick way to regain some lost power.

          JeffreyR

          Year: 1999 Submodel: GT

          Helpful (2)

        • 5/5

          February 06, 2017

          2000 gt Steeda underdrive pulleys

          Great product as is expected I can tell the difference and low-end torque and the car is driving much more smoother thanks American Muscle

          paul

          Year: 2000 Submodel: GT

          Helpful (4)

        • 4/5

          Installation Time: Afternoon

          October 24, 2016

          double check the box

          After removing the old crank pully I found out the hard way that they forgot to put the bolt in the box to line up the new crank pully. Ended up going to few auto part stores and having no luck, went to a hardware store and found one. Burned up about 2 hours trying to find this bolt. Also ran into a little bit of trouble with taking the stock alternator pully off needed to use impact. All said and done I still think it was worth it. I did notice some difference in power. I just wish I would have noticed they forgot the bolt before starting.

          Dallis

          Year: 1999 Submodel: GT

          Helpful (3)

        • 5/5

          August 11, 2016

          Great product from steeda

          Pulleys are well made ...easy to install ..great product and great service from Am

          Will

          Year: 2001 Submodel: GT

          Helpful (3)

        • 5/5

          July 21, 2016

          Steeda Underdrive pulleys

          Very good item for your Mustang, high quality and looks good under the hood. It fells like the car excellerates faster now and freeing up some more horsepower is always a plus to me. The install was easy with 2 people.

          Buzz

          Year: 2000 Submodel: GT

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          October 17, 2015

          Love everything Steeda

          For those looking for pulleys, you should ONLY consider the Steeda's. Do not look at any piggyback pulleys. Absolutely amazing throttle response. Noticed more low end grunt. Went ahead and bought a new ARP bolt when putting on the balancing pulley. I have a JL 12 and 500w amp with all alpine speakers inside and a candy amp pushing those. No charging problems what so ever. I have not noticed any light dimming or anything. If you are looking to get the most out of your engine and staying N/A, DO IT.

          jcrawford21

          Year: 2000 Submodel: GT Wichita, KS

          Helpful (4)

        • 4/5

          Installation Time: Afternoon

          August 21, 2015

          Steeda Underdrive Pulley review (97 Mustang GT)

          I found Steeda’s underdrive pulley kit to be a good buy. The installation was not too bad and pretty straight forward. Install: The biggest installation issue is getting an impact wrench to remove the harmonic balancer. Quality: Steeda’s underdrive pulley kit looked to be of high quality, especially the Harmonic balancer. Performance: I did notice more of bottom end torque as the car seemed to pull stronger on the bottom end at low speeds. However, overall the performance seemed to be perhaps only slightly noticeable. I have yet to test the gas mileage to see if there is an actual increase in mileage.

          TerryR

          Year: 1997 Submodel: GT Austin, TX

          Helpful (2)

        • 4/5

          Installation Time: Less than 1 Hour

          June 11, 2015

          2001 mustang

          I liked that fit as described, with the proper tools and the instructions provided was easy to install. I would of liked to have a sticker to advertised steeda.

          Gio

          Year: 2001 Submodel: GT Long Beach CA

          Helpful (2)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: 0-$100

          May 19, 2015

          nice mod

          I've been debating on this mod for a while and decided to pull the trigger. It was well worth it. I have the PI swap, stage-2 cams and many other mods and the pulleys just added icing on the cake. Quicker revs, more power throughout the band, and improved gas mileage for real! Idles much smoother too. Do it!

          Tre

          Year: 1996 Submodel: GT Linthicum, MD

          Helpful (2)

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