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Call us for great pricing deals every day at (931) 646-4TDM.
1955-1957 Bel
Air ProFit™
5-Speed Overdrive Transmission System
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This 5-Speed System is
the easiest and most complete way to put a high strength, modern
overdrive Tremec TKO 5-speed in your 1955 - 1957 Chevy.
Our Custom Engineered Tailhousings and Shift Mechanisms
provide the smoothest operation, the shortest throws and the only true
internal offset in the business. Enjoy a 5-Speed System with low RPM
cruising, and great fuel economy today.
Click here to run our Speed Analyzer. |
Tremec Overdrive Transmission Conversion Kit for 1955-57 Chevys
Direct Bolt-In ♦ Perfect Shifter Positioning ♦ No Cutting ♦ No Modifications! |
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ProFit
Street Kit TKO-500
ProFit Street Kit TKO-600
ProFit Road Race Kit TKO-600
| Optional offset shifter | $295 |
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ProFit™ 5-Speed Overdrive Transmission System

Click Here or call
(931) 646-4TDM |
TKO-500
ProFit™ Kit |
TKO-600 (.64)
ProFit™ Kit |
TKO-600 (.82)
ProFit™ Kit |
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Builder's Series™ Kits
Complete kit, but with non-customized TREMEC transmission.
Now
includes FREE high performance clutch disk & FREE shifter knob!
You
will need to modify the factory shifter hole and possibly the console.

Click Here or call (931)
646-4TDM |
TKO-500
Builder's Series™
Kit |
TKO-600 (.64)
Builder's Series™
Kit |
TKO-600 (.82)
Builder's Series™
Kit |
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Unmodified Transmissions
Bare TREMEC transmission, for fabrication
specialists.
Be prepared to modify your crossmember, driveshaft,
floorpan,
console, shifter boot, seats, wiring, speedometer,
and provide various specialty hardware and sheetmetal fabrication.

Click Here or call (931)
646-4TDM |
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Bare TKO-500 |
Bare TKO-600 (.64) |
Bare TKO-600 (.82) |
TN residents only: Add sales tax.
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| 1. | Transmission. | All new TKO-500 or TKO-600 transmission. Includes billet aluminum Tremec shifter (using Tremec shifter requires minor modifications to your tunnel). For a no modification installation, the optional offset shifter is required. |
| 2. | Crossmember. | Custom mandrel bent, tubular crossmember. Includes frame mount brackets-some welding required. |
| 3. | Transmission mount. | Energy Suspension polyurethane transmission mount for long life and durability. |
| 4. | Speedometer cable/adapter. | Custom mechanical speedometer cable with integrated adapter and gear. Electric speedometer kits are also available. |
| 5. | Driveshaft. | Steel driveshaft complete with premium Spicer u-joints and Spicer C6 slip yoke, custom built for your car. All driveshafts are balanced using state-of-the-art equipment. 500 H.P. rating with street tires. For higher horsepower applications aluminum driveshafts are available for an additional charge. |
| 6. | Pilot bearing. | Needle roller pilot bearing. |
| 7. | Shift knob. | Hurst black or white 5-speed shift knob. |
| 8. | Reverse light switch connector. | Convenient pigtail connector. |
| 9. | Hardware Kit. | Complete specialty hardware kit for a hassle free installation. |
| 10. | Installation Instructions/Information. | Step-by-step instructions to answer your most detailed questions and help you with your installation. |
| 11. | Optional offset shifter. | High performance offset shifter. This direct bolt-on replacement shifter acheives perfect shift stick positioning within your stock console and requires no modifications to your tunnel, console, or to the transmission! If your goal is a "no cut, no modification" installation, this shifter is for you. |
| 12. | Optional shift stick. | Hurst chrome shifter handle. |
| 13. | Customer Support. | Unlimited phone support for all technical and installation related questions. |
| 14. | Extended warranty. | An additional 6 month warranty from Classic Chevy 5-Speed on all kit components. Warranty is effective for six months from date of purchase. Some restrictions apply. |
Available Tremec transmission models and gear ratios:
| Model |
Part Number |
1st |
2nd |
3rd |
4th |
5th |
Torque Rating |
TKO-500 |
4616 |
3.27 |
1.98 |
1.34 |
1.00 |
.68 |
500 ft/lbs. |
TKO-600 |
5009 |
2.87 |
1.89 |
1.28 |
1.00 |
.64 |
600 ft/lbs. |
TKO-600(RR) |
4618 |
2.87 |
1.89 |
1.28 |
1.00 |
.82 |
600 ft/lbs. |
Installation Notes
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Call
Now! (931) 646-4TDM
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BEST SERVICE AND SUPPORT! Every
customer
has a specific Customer Tech Support rep who stands ready to help
make your project a success. Guaranteed! |
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International
Customers Welcome!
Click
here to request a quote by email. Please tell
us as much as possible about your vehicle's year and model,
engine, current transmission, and differential. |
Installation
is available - click here! Choose one of our Recommended Installers
near you.
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Customize your Gearshift
Knob today!

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