1999-04 Mustang Stifflers Adjustable Transmission Crossmember by Stifflers

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  • Stifflers Mustang Adjustable Transmission Crossmember (99-04) TCB-M20
Stifflers Mustang Adjustable Transmission Crossmember (99-04) TCB-M20

Get strength and adjustability for your New Edge with a 99-04 Transmission Crossmember by Stifflers!

Item #STF-TCBM20

Everyday Low Price: $154.00

In Stock Ships tomorrow!

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  • Easy To Adjust
  • Uses Factory Mounting Locations
  • Engineered To Maintain Pinion Angle


  • Allows More Exhaust Clearance
  • Lighter Weight Than OEM
  • Polyurethane Bushings

What's in the Box

  • (1) Stifflers Adjustable Transmission Crossmember
  • (1) All Required Hardware

Made in the USA

Product Description

1999-2004 Mustang Stifflers Adjustable Crossmember
Looking to shave some weight and add strength and adjustability to your 1999-2004 Ford Mustang? Look no further than this adjustable transmission crossmember from Stiffler. It mounts in the factory mounting location, and is engineered to maintain proper pinion angle. This unique single tube design adds stiffness and strength far beyond that of the OEM versions while offering versatility like no other. Simply slide the mounting sleeves and re-position the spacers to cover the wide variety of transmissions is is designed for. The crossmember is engineered to work with OEM and aftermarket transmission mounts. Low deflection polyurethane bushings are used in the mounts to dampen driveline vibrations and noise. For racing applications the polyurethane bushings can be replaced by solid bushings. If additional vertical adjustment is required, offset bushings can be used to raise or lower the entire mount.

C4, TH350, Power Glide, T-5, AOD, AODE, 4R70W, C6, TKO’s, 3550, T-45, 3650, T-56 (All), TH400, T-45 Cobra Spec

Not sure if this is the right crossmember for you? Check out Stifflers' application guide!

- Fits all 1999-2004 Ford Mustangs
- Fits 2003-2004 Cobras

Stifflers Warranty
Thorough research, analysis and in-house testing go into the development of Stifflers products long before they are approved for the customer. It is throughout this process where potential warranty issues are addressed and accounted for. Although this relentless dedication allows Stifflers to supply only the highest quality product, as with most products intended for off-road or competition use, these items are sold “as is”, without any warranty whatsoever. Implied warranties, including but not limited to, warranties of merchant-ability or fitness for a particular purpose, are additionally excluded. The entire risk as to quality, performance and application of such parts is solely with the buyer. Should such parts prove defective, the buyer and not the manufacturer, distributor or retailer, assumes all responsibilities for any loss, damage or injury resulting from their direct or indirect use. Exceptions to this policy are only those expressly specified for a particular product. All products manufactured by another manufacturer are warranted to the extent of such warranty offered by that manufacturer only.

Customer Photos (2)

Product Reviews (4)

out of 5 stars
4.5 stars
4 reviews
5 stars    2
4 stars    2
3 stars    0
2 stars    0
1 star    0

4 of 4 REVIEWS
4 of 4 REVIEWS

5 Stars   Awesome Crossmember!
By on 8/16/2015
Image uploaded by Kevin Have been using Stifflers FIT system and safety loop for a few years now and love them, so when I saw they came out with a crossmember for my car there was no question, had to get it! As with all Stifflers stuff, the part is very well built and fit great in my Mach1. Yet another win for Stifflers!!!

Yes, I would recommend this item to a friend!

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4 Stars   Solid
By on 4/4/2016
I bought it to replace my worn transmission mount. Easy to install, no more tranny shakes and rattles. I can hear more transmission noise - whine - but nothing horrible. (My car is stripped out for drifting so it's probably more noticeable than a car that is stock). Be careful when tightening the bolts to the frame, they can bend and slip between the mount's opening if you over tighten.

Yes, I would recommend this item to a friend!

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4 Stars   Good alternative crossmember
By on 1/30/2017
I use this on a T-56 Cobra trans behind a coyote motor in a 99 GT. It allows for plenty of clearance for aftermarket exhaust. The build quality is great, thick steel and bushings. However, it will amplify any drive train noises, whines, and vibrations you have or didn't know you had! 4 stars due to the subpar hardware included.

Yes, I would recommend this item to a friend!

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5 Stars   Awesome fit, looks great.
By on 1/26/2017
Image uploaded by Nick R. I recently purchased this crossmember and the stifflers Drive Shaft Safety loop. It fit perfectly for TKO T600 tranny, easy installation. Just wish it would have came with Lock nuts for crossmember bolts where it bolts to the underneath mounts on the floor. Other than that great all around.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 1999 (99) - 2000 (00) - 2001 (01) - 2002 (02) - 2003 (03) - 2004 (04)

About This Brand

Latemodel Restoration is your #1 source for Mustang stiffler's suspension. At Innovative Performance Technologies (IPT), we combine a passion for Mustang and Ford Lightning performance with our love of innovation to develop original new products while continually optimizing existing ones. Our degreed engineering staff has years of product design and development experience; from the highest levels of professional open-wheel racing to OE components for both foreign and domestic auto manufacturers. This knowledge base is now channeled into our Stifflers brand product line-up and is reflected in the ingenuity, quality and functionality of the items we manufacture. Our Fully Integrated Technology (FIT) SystemTM approach to chassis stiffening offers unmatched strength and stiffness, without the need for major chassis modifications. Thorough research, analysis and in-house testing go into the development of our products long before they are approved for customer use. It is this relentless dedication to the pursuit of excellence which is positioning IPT and the Stifflers line of products as an industry leader.

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