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SR Performance Shifter Base & Handle Gasket - T5/T45 & TR3650 (82-04 V8; 93-01 Cobra; 94-04 V6)

Item 99011
AmericanMuscle no longer carries the SR Performance Shifter Base & Handle Gasket - T5/T45 & TR3650 (82-04 V8; 93-01 Cobra; 94-04 V6). Please check out Mustang Gaskets & Seals for an updated selection.

Features, Video & Details

  • Makes Shifter Installation Easier
  • Reduces Noise and Vibration
  • Eliminates Need for Silicone
  • Fits T5/T45 and TR3650 Transmissions
  • Fits 1982-2004 V8, 1993-2001 Cobra and 1994-2004 V6

Review & Installation Video

Review & Install Video

The SR Performance Shifter Base and Handle Gasket is available for any '82 to '04 V8, '93 to '01 Cobra, or '94 to '04 V6 Mustang with a T5 or T45 or a TR 3650 transmission. If you're looking to swap shifters, it's always a good idea to pick up a new gasket to replace the old worn-out ones to make sure you're covering all your bases for this perfect setup. This is a better option than other silicone or gasket makers because it is way more reliable. Installation is extremely simple and it works for almost any shifter out there with the three transmissions I just mentioned, so expect 1 out of 3 wrenches on our difficulty meter. Swapping shifters is great, especially when you're installing a short throw. But when it comes to taking apart your stock shifter, you'll 9 times out of 10 run into a crappier, ripped up shifter gasket that could be decades old, in which case you'll absolutely need a replacement and some of the alternative silicones or even gasket maker kits can leave unwanted noise and vibration because they are not the ideal solution. They're super temporary. Now this gives you a reliable silicone material, cut for your transmission to eliminate the risk of not applying enough Gasket Maker or RTV properly, and it more importantly eliminates that noise and vibration. It's 1/16ths of an inch thick and the kit here includes both the base gasket and for the handle and it's just under 20 bucks. In my opinion, this is well worth it. You could hit your local auto parts store and quickly pick up a quicker solution, like an RTV or whatever they have available, and you could be spending the same amount for something that won't last as long or be as good of a fix. The installation is beyond simple. I'm for sure giving it 1 out of 3 wrenches on our difficulty meter because it should be to get done in about 20 minutes or so in the driveway at home. When you're swapping your shifters or if you're just replacing a stock gasket and throwing the factory one back on, all you'll need to do is unscrew the shift knob and pop off the plastic trim to gain access to the shifter components. Once the boot comes off, use a ratchet and socket set to remove the old two bolts holding the shifter handle on. Then remove the four bolts holding the base to the transmission. From here, you can scrape off any remaining gasket pieces from the base. Be careful not to have debris fall into the trans, you want to make sure you're catching all that. From here, you can just lay the base gasket from the SR Performance into place, and pop the new or older shifter back on, and bolt it back down. The other gasket goes between the handle and the base where the original two bolts that you removed first popped off. Pop the bolts back on, then the boot, then the trim, then the shift knob, and you're good to go. Just to wrap things up here, if you're the owner of, like I said, an '82 to '04 V8, '93 to '01 Cobra, or a '94 to '04 V6 with either a T5, T45, or TR3650 transmission, you might want to check out the SR Performance Shifter Base and Handle Gasket Kit, which is available right here at

No More Mess. If you're installing a new shifter in your T5/T45 or TR3650 transmission but don't like the idea of using RTV silicone or gasket maker, invest in a new shifter base & handle gasket set and choose the no-mess, no-fuss installation instead. You'll reduce the chances of having a stuck bolt or and eliminate the possibility of getting silicone into your transmission by buying this gasket set. It's a smart investment to protect your transmission and it makes shifter install easy.

Eliminates Noise & Vibration. If you use silicone to install your shifter, you can get unnecessary noise and vibration. Using a complete gasket set will reduce the amount of vibrations coming through your transmission into your shifter. Plus, it can eliminate the possibility of metal-on-metal contact if you don't get a complete, thick, evenly distributed layer of silicone. And let's face it - who has time for that?

Easier Removal. Using a shifter base and handle gasket is a smart choice when you have to service your transmission, too. Trying to get your shifter off to get into your turret is a headache if it's on there with silicone. With a gasket, it's easy to remove and even reuse when re-installing your shifter.

Application. This SR Performance Shifter Base & Handle Gaskets are designed for use on all T5/T45 and TR3650 transmissions, including 1982-2004 V8, 1993-2001 Cobra and 1994-2004 V6 Mustangs.

SR Performance

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Shifter Base Gasket
  • (1) Shifter Handle Gasket
Installation Info
Tech Specs
Will it fit my Mustang?
  • Bullitt - 01
  • Cobra - 93, 94, 95, 96, 97, 98, 99, 01
  • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • LX - 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • Other - 82, 83, 84, 85, 86
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

    Customer Photos (18) Submit Your Photo

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      Questions & Answers (2)

      2 Top Rated Questions

      Can I use this gasket with the stock shifter? If so, will it leak since the stock shifter base is much thinner than, for example, a steeda base? Thank you for your time.

      • The SR Performance Shifter Base & Handle Gasket will work with the stock shifter. As long as the shifter base is true, it should not leak.

      Helpful (1)

      What is the gasket made of ? And how thick is it ?

      • This Gasket is made of silicone and has a 1/16" thickness.

      Helpful (0)
      Post Your Question

        Customer Reviews (100+) Write a Review

        Overall Rating 4.1

        out of 5 stars

        • 1/5

          August 30, 2019

          Doesn’t hold up too good

          After a week or two of having it the gasket has stretched out and doesn’t hold in position, and the little gasket for the shifter handle, doesn’t even fit on the short shifter they made lol, so I don’t know what’s the point.


          Year: 1998 Submodel: GT

          Helpful (0)

        • 5/5

          July 10, 2019

          Bang for your buck

          Great purchase and it gives me a sense of security knowing I have that cushion


          Year: 2004 Submodel: GT

          Helpful (0)

        • 4/5

          July 01, 2019

          Great replacement for silicone

          Fit as advertised, next time I won't have to scrape off silicone


          Year: 2003 Submodel: Mach 1

          Helpful (0)

        • 3/5

          June 04, 2019

          Not that great

          Did not work very well with the sr short shifter ended up taking it off and using rtv


          Year: 1999 Submodel: GT

          Helpful (0)

        • 5/5

          May 03, 2019

          Great for easy install

          Great for those not wanting to fuss about with gasket sealer. Good fit.


          Year: 2004 Submodel: GT

          Helpful (0)

        • 1/5

          April 27, 2019

          Not worth the money

          The silicon is a great quality but the gasket itself is terrible in terms of tolerance. I used this gasket for my Pro 5.0 Shifter install and the hole patterns on the gasket are skewed and dont line up. Additionally when I torqued down the shifter the gasket squeezed out on all sides. Better of using silicone out of a tube.


          Year: 1994 Submodel: GT

          Helpful (0)

        • 5/5

          April 24, 2019

          SR Performance Shifter Base Handle Gasket

          SR Performance Shifter Base and Handle Gasket - T5/T45 and TR3650 (82-04 V8; 93-01 Cobra; 94-04 V6) Perfect fit, good value. Just as advertised.


          Year: 2000 Submodel: GT

          Helpful (0)

        • 5/5

          April 05, 2019


          Gasket works well. Helped simplify the shifter install.


          Year: 1996 Submodel: GT

          Helpful (0)

        • 5/5

          April 03, 2019

          Gotta have it!

          Lose the old school squeeze tube of mess and get this when swapping out your lame-o factory shifter!


          Year: 1998 Submodel: GT

          Helpful (0)

        • 5/5

          April 01, 2019

          Great Fit

          A good alternative to the sealer. Make sure to clean the shifter bay and scrape all the old sealer before laying down the new gasket. Great fit


          Year: 2001 Submodel: GT

          Helpful (1)

        • 5/5

          March 13, 2019

          T45 handle gasket

          It works wonderful! Its awesome, works better than I expected.


          Year: 1999 Submodel: V6

          Helpful (0)

        • 5/5

          March 04, 2019

          Shifter seal

          I could only find this from American Muscle. It did the job instead of using silicon. I used silicon last time and it makes it a little hard to get the shifter off. When I have to take it off next time it should come off a lot easier. I like that it's reusable.


          Year: 2004 Submodel: Mach 1

          Helpful (0)

        • 4/5

          February 18, 2019

          SR shifter base

          Good fit no trouble at all with it. I would recommend this to anyone installing a new shifter


          Year: 1995 Submodel: GT

          Helpful (0)

        • 5/5

          January 28, 2019

          Shifter gasket

          04 mustang with tr3650 works good fits good with steeda shifter alot better than using gasket sealant


          Year: 2004 Submodel: GT

          Helpful (0)

        • 5/5

          January 14, 2019

          Good Quality

          The gasket is made of good quality! It’s probably not necessary as a type of gasket maker would likely do the job, but I went ahead and got this gasket since local auto part stores do not sell this gasket. It is a little pricey, but I believe it’s worth it!


          Year: 2002 Submodel: GT

          Helpful (1)

        • 5/5

          January 11, 2019

          Is a must-have

          This fit perfectly and worked perfectly, along with the sr short throw it changed my car completely


          Year: 1997 Submodel: GT

          Helpful (1)

        • 5/5

          January 08, 2019

          Nice Gasket

          Looks of good quality. Like the fact that it is reusable. Fit perfect.


          Year: 1992 Submodel: GT

          Helpful (1)

        • 4/5

          December 25, 2018

          Great Gasket

          Fit right in and sealed very well compared to original seal.


          Year: 2003 Submodel: GT

          Helpful (1)

        • 3/5

          December 05, 2018

          Fitment may need tweeked

          I have used this to seal a stock shifter didn't really fit to well bunched up in the corners I'm not sure how a aftermarket shifter would work though.


          Year: 1997 Submodel: GT

          Helpful (2)

        • 1/5

          November 12, 2018

          Waste of money and time

          I purchased this hoping it would save me time and effort when installing my new shifter. It did neither and was a waste of money. It was difficult to keep in place, did not seal well, and kept shifting when I would tighten. After 1/2 hour, I scrapped it and just used a tube of RTV ($3). That took all of 2 min., and was MUCH easier.


          Year: 2000 Submodel: GT

          Helpful (2)

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