Product Summary

5-Speed Transmission Speeds, 600 ft./lbs. Torque

  • This works with 55-85 2 piece rear main seal engines
  • Designed for multiple applications with three shifter locations. Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications
  • Steel bellhousing is built from high grade steel - with painted finish
  • 168 tooth flywheel - billet steel
  • 11 inch clutch with pressure plate, rated for 550 HP, dual faced organic and metallic disc for smooth engagement

Comes as a Kit

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Key Specs

MFG. Part #91029052
BrandSpeedway Motors
Transmission Speeds5-Speed
Input Shaft Spline Count26
Input Shaft Diameter1.125"
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Speedway Motors 91029052 Details

With the introduction of the TREMEC TKX transmission the 5-speed manual transmission has never been easier to fit in your muscle car or hot rod. At Speedway Motors we want to help your installation so we put together the complete driveline package. The driveline package includes the TKX 5-Speed manual transmission, Chevy Lakewood steel bellhousing, Speedway hydraulic release bearing, McLeod Super Street Pro 11 inch clutch set with pressure plate, and ARP hardware. It also includes PRW flywheel with removable weight for compatibility with small block and big block Chevy engines either internally or externally balanced.

TREMEC TKX 5-Speed Manual Transmission

For the development of the new transmission, TREMEC engineers took a forward-looking approach to finding the best and most efficient solution. This included universal packaging, excellent shifting performance, and extreme durability. The end result is superior shift-ability with smooth shifts at high RPMs through the use of multi-cone synchronizers and hybrid synchronizer rings. At the same time, noise, vibration and harshness (NVH) performance is optimized with a gear layout to best control stress levels, while providing structural stiffness with a ribbed, 3-piece aluminum housing. Durability is further optimized with oversized gear widths, gaskets at all flanges and caged needle bearings in all gear positions.

Lakewood Steel Bellhousing

The Lakewood bellhousing connects Chevy Engines to transmissions using the GM standard pattern such as the Muncie, Saginaw, Borg Warner T10, TREMEC TKO and TKX transmissions. This bellhousing is not S.F.I. certified so it is ideal for street rods, muscle cars and trucks. This bellhousing is designed to fit GM full and midsized vehicles from 1958-1987. 

PRW 1635096 Pro Chevy Billet Steel Flywheel, SFI

PRW SFI-Rated flywheels raise the bar in the high performance industry. The combination of top quality and reasonable pricing sets new standards. We know that when you receive your new PRW performance components, you will have no trouble seeing what the excitement is all about.

These SFI-Rated Flywheels are engineered to handle extreme duty applications and designed to take the punishment of todays high horsepower engines. PRW billet steel flywheels are CAD engineered and precision CNC machined to strict tolerances. The choice of 5 out of 6 winning engine builders at the Engine Master Challenge four years running, PRW billet steel flywheels were awardedBest New Product of the Year at the 2006 Hotrod & Restoration Show. Every flywheel is engineered for excellence and rigorously inspected throughout the manufacturing cycle to ensure that our customers receive the quality that they have come to expect from PRW products.

  • SFI certified
  • Manufactured from 1045 Billet Steel
  • CAD Engineering and CNC Machined
  • Award winning designs year-after-year

McLeod Super Street Pro 11 Inch Clutch

McLeod Super Street Pro clutch kit was designed with the street and track in mind. This kit is recommended to be used in vehicles with moderate engine mods and street tires. This kit is rated for up to 550 horsepower. This Super Street Pro Clutch Kit is SFI approved. Included is a high clamp load pressure plate, a dual faced organic and metallic disc for smooth engagement and excellent holding power.  If you are looking for a street friendly yet track proven clutch, the McLeod Super Street Pro is your best choice.

Speedway Hydraulic Release Bearing

Speedway Motors’ hydraulic release bearing kit provides everything you need to ditch your stock, tired mechanical linkage and go hydraulic at a great value. The kit features a new and improved release bearing designed by Speedway Motors’ Engineering Team with a CNC-machined housing, extended fluid line fittings, and a built-in fail-safe retainer. There is simply no way to over-extend this release bearing with this retainer design. Typically over-extending the release bearing means pulling the transmission and reassembling the separated bearing (not to mention cleaning up all that hydraulic fluid in the bellhousing!). Also included are a sufficient number of release bearing shims to correctly set your air gap between the bearing face and clutch, as well as both 5/16- and 3/8-inch anti-rotation studs to fit a wide variety of GM manual transmission applications.

Driveline Package Details

  • The TKX has 600 lb.-ft. of torque capacity and is capable of engines speeds of 8,000 RPMs with shifts at 7,500 RPMs.
  • Designed for multiple applications with three shifter locations. Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications.
  • Increased case strength with three-piece aluminum housing provides outstanding structural stiffness (includes main case, intermediate plate and rear extension). Gaskets at all flanges simplifies installation and eliminates fluid leaks.
  • Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon
  • All gears and shafts made from special grade steel (ASTM 4615) providing increased torque carrying capacity.
  • Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp shifts.
  • 26-spline input shaft with a 31-spline output shaft for added strength.
  • Built-in reverse light switch and cruise control safety switch.
  • Steel bellhousing is built from high grade steel - with painted finish
  • 168 tooth flywheel - billet steel
  • Hydraulic throwout bearing features anti-rotation studs and air gap shims
  • 11 inch clutch with pressure plate, rated for 550 HP, dual faced organic and metallic disc for smooth engagement
  • TKX Gear Ratios
    • 1st - 2.87, 2nd - 1.89, 3rd - 1.28, 4th - 1.00, 5th - 0.68, Reverse - 2.56

Charts

Speedway Motors 91029052 Specifications

KEY SPECS
MFG. Part #91029052
BrandSpeedway Motors
Transmission Speeds5-Speed
Input Shaft Spline Count26
Input Shaft Diameter1.125"
GENERAL
Torque600 ft./lbs.
Output Shaft Spline Diameter1.375"
Output Shaft Spline Count31
Case MaterialAluminum
First Gear Ratio2.87:1
Gear Ratio (2nd)1.89:1
Gear Ratio (3rd)1.28:1
Gear Ratio (4th)1.00:1
Gear Ratio (5th)0.68:1
Bellhousing IncludedYes
Yoke IncludedNo
Shifter IncludedYes
Gear Ratio (Reverse)2.56:1
Sold in QuantityKit
Yoke StyleSlip On
Shifter StyleLinkage operated

Ratings & Reviews

5

6 Reviews

Overall Assessment

Customers appreciate the TKX Tremec Trans kit for its excellent quality and ease of assembly. Its practicality is highlighted with users noting it contains most necessary components for their projects. The product stands out in anticipation of its use, demonstrating its superior features over competitors. One user is eager to install it in a '55 model, reflecting its broad application and high expectations. This product garners high recommendations for future use.

5

6 reviews

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I would buy this product again

5.0

9 months ago

Hunter

Illinois

Verified

This transmission was very easy to install and very well put together.

Would Recommend

Complete kit

5.0

a year ago

82 c10

Monterey tn

Verified

Doing a T56 conversion on my 82 c10 and was nice to be able to order everything from one location and know I'm getting best deal out there

Would Recommend

I would purchase again

5.0

a year ago

Johnny

Houston, TX

Kit is noted as compatible with BB or SBC; the flywheel I received included is a BB only part. Speedway was very proactive in resolving the issue and sent me over the correct part and are taking steps to fix the description issue. Overall kit is very quality and works very well. It is very nice to get a kit that takes the guesswork out of piecing a kit together and save a few dollars at the same time.

Would Recommend

Yey

5.0

3 years ago

CliFHenry

Sacto

Verified

TKX is nice

Would Recommend

I would buy this again if I do antother project!

5.0

4 years ago

Dok

Phoenix

Verified

Great kit! easy assembly and setup. Seems to have all you need except the clutch master cylinder.

Would Recommend

TKX TREMEC TRANS KIT

5.0

4 years ago

Choppa

Gilbert AZ

Verified

I can't wait to install in my '55

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

4 Questions • 4 Answers

I have a 454 engine in a '68 Camaro. Will this transmission fit, or is it only for small blocks?

by Alex

• 3 months ago

1 answer

Will this bellhousing work with a one price main seal?

by Ron

• 4 months ago

1 answer

Will this work on a 5.3?

by Peterson

• 3 years ago

1 answer

Is this same kit available with a neutral balance flywheel instead of an externally balanced.

by Chris

• 3 years ago

1 answer

4 of 4 questions shown

Fitment

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