865.609.8187 and 844.609.8187
My Cart

Search

TREMEC TKO, TREMEC Magnum, & SST A41 Conversion Kits for 1970-1981 Camaro and Firebird

Parts Finder

Enjoy Life in Overdrive

1970-1975 Camaro and Firebird Overdrive Transmissions

Silver Sport Transmissions has the best-engineered kits to modernize the powertrain of your 1970-1975 Chevy Camaro or Pontiac Firebird. Console or no console, we've got you covered. Our PerfectFit™ Kits bring the shifter handle to the factory-correct position for the best possible fit and our billet shifter tower provides short, crisp shifts.

Car shows, close friends, and good times are all within easy reach when you choose a TREMEC TKX 5-speed, T56 Magnum 6-speed, or Silver Sport Transmissions A41 4-speed automatic overdrive from SST!

The TREMEC TKX 5-Speed is the newest and most compact transmission from TREMEC.  Capable of handling up to 600 lb-ft torque and 7,500 rpm shifts, the TKX is strong enough to handle most street applications. Our TKXs have been modified to give you a factory-correct shifter position so your car will retain the factory look.  They also come with a crossmember to keep your driveline angles in spec. Find out why people call this powertrain upgrade the best improvement they've made to their car! 

The TREMEC Magnum 6-speed is quickly gaining in popularity as more and more people opt for larger engines. The 6-speed has two overdriven gears and can handle up to 700 lb-ft torque and 7,800 rpm shifts. Although it's certainly capable of handling the abuse of the track, it's also great for everyday use.  Our short throw shifter tower turns a great transmission into one of the best out there and our PerfectFit™ kit will let you keep a factory look with modern performance.

Silver Sport Transmissions A41 4-Speed Automatic is based on the GM 4L60E transmission and comes in three performance stages.  It can handle anywhere from 450 to 650 lb-ft torque.  It's an excellent alternative to replace the original automatic and with the overdrive, it is an impressive upgrade. Switch from a gas-saving economy mode to performance mode with a flip of a switch or go from performance to high performance, you set the custom shift points!

Use the tabs above to learn more about each transmission or use the Speed Analyzer to determine which transmission will fit your car and driving style the best. 

 

Request a Quick Quote

 

Tremec TKX PerfectFit™ Kit for 1970-1981 F-Body

When you convert to the Tremec TKX 5 Speed, you will experience:

  • Compact, rounded case - No cutting
  • Capable of handling 600 lb•ft torque
  • Capable of 7,500 rpm shifts
  • 30-50% increase in fuel economy
  • Low RPM cruising
  • Reduced NVH (noise - vibration - harshness)
  • Interchangeable with mechanical or hydraulic clutch actuators by removing just a few bolts, no need to tear down the transmission
  • Designed for everyday street use - an ideal blend of brute strength and street manners

 

TKX Gear Ratios

Wide Ratio - 3.27, 1.98, 1.34, 1.00, 0.72
Close Ratio - 2.87, 1.89, 1.28, 1.00, 0.68 OR 0.81

Silver Sport Transmissions Overdrive Kit Overview

1970-1975 GM F Body Camaro and Firebird TREMEC TKX PerfectFit Kit

  • TREMEC TKX 5 Speed Overdrive
  • STX Shifters® - True offset for a factory-correct shifter position
  • Pilot Bearing - Super heavy-duty needle roller type with lube seal for long life
  • Installation Hardware - Every bolt you need is included and clearly labeled
  • Isolator Mount - Rubber for vibration isolation or optional  heavy-duty poly for track duty
  • Crossmember - CAD designed, lightweight and box welded for rigidity. Better exhaust clearance and rigidity compared to tubular or aluminum variants.
  • Speedometer Connection - Mechanical and electronic compatible
  • Reverse Lights Connector - Waterproof connector
  • 5-Speed Shift Pattern Plate - Maintains original appearance ('70-'71 Camaro Only)
  • Driveshaft & Slip Yoke - Lightweight, steel, custom driveshaft for superior strength. Dynamically balanced for smooth operation and premium solid u-joints come standard.
  • Detailed Installation Instructions - including free lifetime tech support
  • Market Leading Warranty - learn more

Request a Quick Quote

 

Auto to Manual Conversions and Optional Parts

1970-1975 Camaro and Firebird Optional Parts TREMEC TKX

  • SST Advanced Friction™ Flywheel* - Billet steel, not cast steel, for improved durability and safety 
  • SST Advanced Friction™ Series II Clutch* - High performance, long life packages with easy pedal effort tailored to your needs
  • Bellhousing* - Choose from titanium-aluminum OEM type or steel scatter shields that meet race safety requirements.
  • Hydraulic Clutch Actuator Kit* - Modern technology with less pedal effort
    • Master cylinder - high-quality Wilwood
    • Heavy-Duty concentric slave cylinder - 1,000,000 cycle service life
    • Pre-engineered firewall mount for master cylinder - eliminates guess-work for easy installation
    • Remote reservoir with hose
    • Braided steel pressure hose
    • Pedal pushrod and all hardware
    • Detailed installation instructions
  • Tunnel Hump* - F2 Reproduction 4-Speed Tunnel Hump
  • Shifter Boot and Trim Ring* - F1 replica shifter boot and trim ring
  • Lower Shifter Boot* - Weatherproof your interior.
  • Shifter Handle* - A variety of shifter sticks from classic to modern to choose from.
  • Pedals* - Replica clutch and brake pedals, includes new pedal pads
  • Mechanical Linkage* - 1970-1975 GM F Body shifter linkage
  • Shifter Knob* - Available in white or black for that classic look. Engraved with 5-speed shift pattern.
  • STX Shifter® - Silver Sport Transmissions bolt-on short throw shifter.
  • Fluid - Break-In Fluid, transmission fluid, and hydraulic clutch fluid available for purchase

*Required for Automatic to Manual Conversions

Request a Quick Quote

 

Why buy from Silver Sport Transmissions?

  1. Fast Shipping
    • Popular kits are in stock for short lead times
  2. Complete Kits
    • Why go to multiple sources for parts? Make one phone call and get things going on your project now.
  3. Excellent Customer Service
    • Lifetime tech support
    • Knowledgeable staff
  4. Premium Components
    • Only approved, high-quality parts are sold by SST.
  5. Engineering Know-How
    • Only SST has experienced and licensed engineers on staff. We know what fits, what works and how to install it.

 

Call today and let us assemble a custom kit just for you, or complete a Quick Quote

Magnum 6-Speed PerfectFit™ Kit for F-Body

TREMEC Magnum T56 6-Speed 1970-1981 Camaro and Firebird

Highway cruising double overdrive!

Take a ride in a 1978 TransAM with a TREMEC 6-Speed PerfectFit Kit
 

When you convert to the Tremec Magnum 6-Speed, you will experience:

  • 30-50% increase in fuel economy
  • Low RPM cruising for greatly reduced driver fatigue and an improved highway driving experience. Road trips are fun again!
  • Reduced engine wear leading to longer engine life
  • Cooler engine operating temperatures
  • Reduced NVH (noise - vibration - harshness)

 

Tremec Magnum Gear Ratios

2.66, 1.78, 1.30, 1.00, 0.80, 0.63
2.97, 2.10, 1.46, 1.00, 0.80, 0.63

 

Silver Sport Transmissions Magnum 6-Speed PerfectFit™ Kit Overview

TREMEC Magnum T56 6-Speed 1970-1981 Camaro and Firebird

PerfectFit™ Tremec Magnum Kit Components for conversion from a manual

  1. Tremec Magnum 6 Speed Double Overdrive
    • 700 torque capacity wide or close ratio.
    • Perfect factory shifter positioning.
    • Market Leading Warranty - learn more
    • Friction Lined Synchronizer Blocker Rings come standard for easy high RPM shifts
    • Lower Cost Option  Classic Fit option available for non-console installations.  Slight trimming of the shifter opening may be required.
  2. Bellhousing Adapter Plate
  3. Crossmember
    • CAD designed, lightweight and box welded for rigidity
    • Better exhaust clearance and rigidity compared to tubular or aluminum variants
  4. Body Metal & Cutting Template (Not Pictured)
  5. Driveshaft & Slip Yoke
    • Lightweight, steel, custom driveshaft for superior strength. Dynamically balanced for smooth operation and premium solid u-joints come standard.
  6. Speedometer Connection
    • Mechanical and electronic compatible
  7. Calibrated Speedo Cable or Electronic Speedo Connector - Your choice
  8. Reverse Light Connector
  9. Pilot Bearing
    • Super heavy-duty needle roller type with lube seal for long life
  10. Isolator Mount
    • Rubber for vibration isolation
  11. Installation Hardware
  12. Detailed Installation Instructions - including free lifetime tech support
  13. Market Leading Warranty - learn more

 

Request a Quick Quote

 

Optional components offered

  1. Reverse Lockout Control Module
  2. Heavy Duty Poly Isolator Mount Upgrade
    • For track duty
  3. Hydraulic Clutch Actuator Kit - Modern technology with less pedal effort
    • Master cylinder - high-quality Wilwood
    • Heavy-Duty concentric slave cylinder - 300,000 stroke service life 
    • Pre-engineered firewall mount for master cylinder - eliminates the guesswork for easy installation
    • Remote reservoir with hose
    • Braided steel pressure hose
    • Pedal pushrod and all hardware
    • Detailed installation instructions
  4. Flywheel
    • Billet steel, not cast steel, for improved durability and safety.
  5. Clutch Kit
    • High performance, long life packages with easy pedal effort tailored to your needs
  6. Bellhousing
    • Titanium-Aluminum OEM type or steel scattershields that meet race safety requirements
  7. Shifter Handle
  8. Shifter Ball
    • For aftermarket shifters, available in white or black for that classic look. Engraved with 6-speed shift pattern.

 

Request a Quick Quote

 

Why buy from Silver Sport Transmissions?

  1. Fast Shipping
    • Popular kits are in stock for short lead times
  2. Complete Kits
    • Why go to multiple sources for parts? Make one phone call and get things going on your project now.
  3. Excellent Customer Service
    • Lifetime tech support
    • Knowledgeable staff
  4. Premium Components
    • Only approved, high-quality parts are sold by SST.
  5. Engineering Know-How
    • Only SST has experienced and licensed engineers on staff. We know what fits, what works, and how to install it.

 

Call today and let us assemble a custom kit just for you, or complete a Quick Quote

When you convert to the Tremec Magnum 6-Speed, you will experience:

  • 30-50% increase in fuel economy
  • Low RPM cruising for greatly reduced driver fatigue and an improved highway driving experience. Road trips are fun again!
  • Reduced engine wear leading to longer engine life
  • Cooler engine operating temperatures
  • Reduced NVH (noise - vibration - harshness)

 

Tremec Magnum Gear Ratios

Close- 2.66, 1.78, 1.30, 1.00, 0.80, 0.63
Wide - 2.97, 2.10, 1.46, 1.00, 0.74, 0.50

 

Silver Sport Transmissions Magnum 6-Speed PerfectFit™ Kit Overview

TREMEC Magnum T56 6-Speed 1970-1981 Camaro and Firebird

PerfectFit™ Tremec Magnum Kit Components for conversion from automatic

  1. Tremec Magnum 6 Speed Double Overdrive
    • 700 torque capacity wide or close ratio.
    • Perfect factory shifter positioning.
    • Market Leading Warranty - learn more
    • Friction Lined Synchronizer Blocker Rings come standard for easy high RPM shifts
    • Lower Cost Option  Classic Fit option available for non-console installations.  Slight trimming of the shifter opening may be required.
  2. Crossmember
    • CAD designed, lightweight and box welded for rigidity
    • Better exhaust clearance and rigidity compared to tubular or aluminum variants
  3. Flywheel
    • Billet steel, not cast steel, for improved durability and safety.
  4. Clutch Kit
    • High performance, long life packages with easy pedal effort tailored to your needs
  5. Bellhousing
  6. Shifter Handle
  7. Shifter Ball
    • For aftermarket shifters, available in white or black for that classic look. Engraved with a 6-speed shift pattern.
  8. Shift Boot and Trim Ring
  9. Pedals
  10. Hydraulic Clutch Linkage
  11. Driveshaft & Slip Yoke
    • Lightweight, steel, custom driveshaft for superior strength. Dynamically balanced for smooth operation and premium solid u-joints come standard.
  12. Speedometer Connection
    • Mechanical and electronic compatible
  13. Calibrated Speedo Cable or Electronic Speedo Connector - Your choice
  14. Reverse Light Connector
  15. Pilot Bearing
    • Super heavy-duty needle roller type with lube seal for long life
  16. Isolator Mount
    • Rubber for vibration isolation
  17. Installation Hardware
  18. Detailed Installation Instructions - including free lifetime tech support
  19. Market Leading Warranty - learn more

 

Request a Quick Quote

 

Optional components offered

  1. Heavy Duty Poly Isolator Mount Upgrade
    • For track duty
  2. Reverse Lockout Control Module

 

Request a Quick Quote

 

Why buy from Silver Sport Transmissions?

  1. Fast Shipping
    • Popular kits are in stock for short lead times
  2. Complete Kits
    • Why go to multiple sources for parts? Make one phone call and get things going on your project now.
  3. Excellent Customer Service
    • Lifetime tech support
    • Knowledgeable staff
  4. Premium Components
    • Only approved, high-quality parts are sold by SST.
  5. Engineering Know-How
    • Only SST has experienced and licensed engineers on staff. We know what fits, what works, and how to install it.

 

Call today and let us assemble a custom kit just for you, or complete a Quick Quote

A41 4-Speed Automatic PerfectFit™ Kit for F-Body

A41 4L60E PerfectFit Kit for 1970-1981 Camaro and Firebird

 

Put it in drive and watch the gas stations go by.

 

The A41 4 Speed Automatic Transmission

View the Installation Manual

A41 4L60E A41 Ratio: 3.06, 1.63, 1.00, 0.70

 

Available in three stages:

Stage 1 - 450 Torque
Stage 2 - 550 Torque
Stage 3 - 650 Torque

 

Features:

  • Low RPM Cruising
  • Great Shift Quality
  • Dyno Tested
  • Electronic Controller
  • Lockup Torque Converter with Optional Stall Speeds
  • No Tunnel Cutting 

 

The A41 is an excellent way to replace your tired 904, 727, 518, Powerglide, TH350 (Turbo 350), TH400 (Turbo 400), 200R4 (200-4R) or 700R4 with modern technology that offers better acceleration and a 30% reduction in cruising rpms.

 

Request a Quick Quote

COMPUSHIFT Sport

COMPUSHIFTThe COMPUSHIFT Sport is the next generation of transmission controllers.

  • All the connectors - The COMPUSHIFT Sport transmission controller looms come with a full set of Plug and Play OEM Connectors for all supported transmissions - making installation effortless.
  • Smart Phone Integration - COMPUSHIFT Sport brings you the first-ever smartphone integrated transmission controller. This makes programming dead easy – allowing programming via Android or iOS smartphones, tablets, PCs and Macs. Connectivity includes both Bluetooth and dual independent CAN bus networks. All software is included.
  • Fully Customize Your Transmission - Get full and precise control of the shifting strategy for your transmission. COMPUSHIFT Sport and Pro are delivered with versatile factory-set programming for a wide variety of transmission and engine combinations. However, you can completely customize settings to your exact specifications.

 

COMPUSHIFT Sport Technical Specifications

COMPUSHIFT

Smart Phone / Tablet / Computer Integration:

  • COMPUSHIFT Sport brings you the first-ever smartphone integrated transmission controller. This makes programming dead easy – allowing programming via Android or iOS smartphones, tablets, PCs and Macs. Connectivity includes both Bluetooth and dual independent CAN bus networks. All software is included.

 

Control:

  • Get full and precise control of the shifting strategy for your transmission. COMPUSHIFT Sport and Pro are delivered with versatile factory-set programming for a wide variety of transmission and engine combinations. However, you can completely customize settings to your exact specifications.
  • Fully adjustable shift speeds, shift feel and torque converter clutch control.
  • Provides adjustable output for speedometer calibration.

 

Compatibility:

  • COMPUSHIFT has the capability of communicating with many different factory and aftermarket engine controllers for quick plug and play setup. No wire splicing required.
  • Uses industry-standard trouble codes

 

Ease of Setup:

  • All The Connectors - The COMPUSHIFT Sport transmission controller looms come with a full set of Plug and Play OEM Connectors for all supported transmissions - making installation effortless.
  • COMPUSHIFT software is upgradeable in the field via Bluetooth. Updates are available via Google Play, Kindle and the Apple App Store.
  • Two full sets of calibration modes that can be selected by button or app.
  • Transfer case switch input for shift / speedometer calibration in low range / 4WD vehicles.

 

Durability:

  • Highly Water and Dust Proof - IP65 Rated

 

Request a Quick Quote

A41 4L60E Automatic conversion kit for 1970-1981 Camaro and Firebird

Each PerfectFit™ Kit comes with the correct components for your application and will include the following parts:

 

  1. Automatic Transmission - A41 (GM 4L60E / GM 4L65E Aftermarket replacement)
  2. COMPUSHIFT Sport Controller
  3. Dipstick and Tube - OEM Style
  4. Auxiliary Oil Cooler - High performance for Stage 2 and 3 only, Optional purchase for Stage 1 kits
  5. Bellhousing 
  6. Lock Up Torque Converter - Electronically controlled, stall options available 
  7. Throttle Position Sensor - Bolt-on unit provides throttle feedback to the computer with just 3 wires
  8. Braided Steel Cooler Lines
  9. Speedometer Cable - Mechanical Speedo Cable
  10. Hardware - High strength grade 8 fasteners standard
  11. Wiring - Plug & Play wiring harness
  12. Inspection Cover
  13. Driveshaft - High strength computer balanced with sealed u-joints & slip yoke
  14. Reverse Light Wiring
  15. Crossmember - Heavy duty formed steel, powder-coated
  16. Isolator - Vibration-free, heavy-duty rubber isolator 

 

Request a Quick Quote