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Tremec TKO Transmissions

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TKOStandard Transmission & Gear now offers a limited labor warranty! Ask your sales rep for details.

The old Tremec 3550 Transmissions are now designated as TKO 500 and TKO 600.

The entire line of Tremec 3550 units, including TKO and GM configurations, has changed. The basic design and dimensional specs are the same, but part numbers, torque ratings, applications, and pricing are all changing.

ST&G is an authorized dealer of the TKO 500 TKO 600 high performance transmission. It has the same bolt patterns, depending on model, as Ford's top loader 4-speed or the GM Muncie transmission, and can be used in many various applications. Kit cars, old hot rods, and many OEM replacements are typical examples. You can lower your engine rpm in overdrive (5th gear) by as much as 36% with these units!  

We are the only factory authorized service center in North Texas!
Below you will find a brief description of units.


TCET 4615

FORD Similar to 3550, but with 500 ft/lbs rating

TCET 4616

GM Like the 2057, but with 500 ft/lbs rating

TCET 4617

FORD 600 ft/lbs 2.87 1st; .82 OD ratio

TCET 4618

GM as above, except GM unit

TCET 5008

FORD 600 ft/lbs unit - 2.87 1st; .64 OD ratio

TCET 5009

GM as above, except GM unit

TCET 5201

FORD - similar to TCET4615, but with 26 spline input

Also see our TKO 500 & TKO 600 Conversion Kits, click here
***For all Tremec light duty unit models and specifications, click here***

With bell housing for changing out a Ford T5 (5.0L only), add an additional $175.00, not including any applicable tax.

Shipping: (call for quote)

We stock a complete line of high performance clutches for you car. 

The short shaft kits for the TKO 500 - TCKT5727 & TKO 600 - TCKT5729 are available.

Contact us if you have more questions or would like to place an order!

We can usually rebuild your transmission for less than exchanging it. All of our new and rebuilt transmissions carry a 12mo/12,000 mile warranty. Send us your transmission, transfer case, or differential & we'll disassemble, clean & inspect it. Next, we'll contact you with an exact price to repair the unit, including all parts and labor. After you approve the work, we can usually complete the repairs in 1-2 business days.

Remember, we can ship anywhere you need us to - usually on the same day! We accept: Mastercard, Visa, & Discover. We ship via UPS, motor freight, U.S. Postal Service, overnight, 2 day, 3 day, or regular freight, depending on your needs. International Shipping is quoted to nearest airport. Customer is responsible for all duties, etc. that may be imposed in your country.
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