TREMEC TKO, TREMEC Magnum and SST A41 Automatic Conversion Kits for 1966-1970 MOPAR B-Body: Belvedere, Charger, Coronet, GTX, Road Runner, Satellite, Super Bee and Super Bird
Silver Sport Transmissions has the best-engineered kits to modernize the powertrain of your 1966-1970 Mopar B body. 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 TKO 5-Speed, TREMEC Magnum 6-Speed, or an A41 automatic overdrive from SST!
Use the tabs above to learn more.
Tremec TKX PerfectFit™ Kit for 1966-1970 Mopar B Body
The good ol' days never had it this good!
1966-1970 Mopar B Body Style includes: Belvedere, Charger, Coronet, GTX, Road Runner, Satellite, Super Bee, and Super Bird.
Download or print a B2 Body Conversion Kit flyer here: PerfectFit™ Kit Flyer
Download or print the installation manual here: Installation Manual
When you convert to the Tremec TKO 5 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)
Silver Sport Transmissions Overdrive Kit Overview
Driveshafts are no longer included on your order, but may be purchased seperately.
Tremec TKX Kit Components for conversion from 3 or 4-speed manual
- Tremec TKX 5 Speed Overdrive
- Compact billet aluminum shifter mechanism provides smooth shifting with short throws. Perfect factory shifter positioning.
- Exclusive SST case customization - CNC machined, without compromise to the transmission
- Thoroughly tested for leaks and performance.
- Market Leading Warranty - learn more
- Optional Carbon Fiber Lined Synchronizer blocker ring upgrade for higher rpm shift capability
- Crossmember
- CAD designed, lightweight, easy bolt-in
- Speedometer Connection
- Mechanical and electronic compatible
- Calibrated Speedo Cable or Electronic Speedo Connector - Your choice
- Reverse Light Connector
- Pilot Bearing
- Super heavy-duty needle roller type with lube seal for long life
- Isolator Mount
- Rubber for vibration isolation
- Installation Hardware
- Tunnel Template & Sheet Metal - ready to install for a professional look
- Detailed Installation Instructions - including free lifetime tech support
- Market Leading Warranty - learn more
Request a Quick Quote
Optional components offered
- Driveshaft & Slip Yoke
- Lightweight, steel, custom driveshaft for superior strength. Dynamically balanced for smooth operation and premium solid u-joints come standard.
- Carbon Fiber Lined Synchronizer Blocker Ring and Bronze Shift Fork Pad Upgrade
- For higher rpm shift capability and increased durability
- Hydraulic Clutch Actuator Kit - Modern technology with less pedal effort
- Master cylinder - high-quality
- Heavy-Duty concentric slave cylinder - 1,000,000 cycle 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
- Flywheel Billet steel, not cast steel, for improved durability and safety.
- Clutch Kit
- High performance, long life packages with easy pedal effort tailored to your needs
- Bellhousing
- Titanium-Aluminum OEM type or steel scattershields that meet race safety requirements
- Pistol Grip Shifter Handle - Carbon Fiber look (pictured) also available
- Throwout Bearing
Request a Quick Quote
Why buy from Silver Sport Transmissions?
- Fast Shipping
- Popular kits are in stock for short lead times
- Complete Kits
- Why go to multiple sources for parts? Make one phone call and get things going on your project now.
- Excellent Customer Service
- Lifetime tech support
- Knowledgeable staff
- Premium Components
- Only approved, high-quality parts are sold by SST.
- 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
Download or print a B2 Body Conversion Kit flyer here: PerfectFit™ Kit Flyer
Download or print the installation manual here: Installation Manual
When you convert to the Tremec TKX 5 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)
Silver Sport Transmissions Overdrive Kit Overview
Driveshafts are no longer included on your order, but may be purchased seperately.
Tremec TKX Kit Components for conversion from an automatic transmission
- Tremec TKX 5 Speed Overdrive
- Compact billet aluminum shifter mechanism provides smooth shifting with short throws. Perfect factory shifter positioning.
- Exclusive SST case customization - CNC machined, without compromise to the transmission
- Thoroughly tested for leaks and performance.
- Market Leading Warranty - learn more
- Optional Carbon Fiber Lined Synchronizer blocker ring upgrade for higher rpm shift capability
- Pilot Bearing
- Super heavy-duty needle roller type with lube seal for long life
- Flywheel Billet steel, not cast steel, for improved durability and safety.
- Clutch Kit
- High performance, long life packages with easy pedal effort tailored to your needs
- Mechanical Linkage
- Bellhousing & Inspection Cover
- Titanium-Aluminum OEM type or steel scattershields that meet race safety requirements
- Throwout Bearing
- Pedal Kit
- Crossmember
- CAD designed, lightweight, easy bolt-in
- Speedometer Connection
- Mechanical and electronic compatible
- Calibrated Speedo Cable or Electronic Speedo Connector - Your choice
- Reverse Light Connector
- Isolator Mount
- Rubber for vibration isolation
- Installation Hardware
- Tunnel Template & Sheet Metal - ready to install for a professional look
- Pistol Grip Shifter Handle - Carbon Fiber look (pictured) also available
- Detailed Installation Instructions - including free lifetime tech support
- Market Leading Warranty - learn more
Request a Quick Quote
Optional components offered
- Driveshaft & Slip Yoke
- Lightweight, steel, custom driveshaft for superior strength. Dynamically balanced for smooth operation and premium solid u-joints come standard.
- Carbon Fiber Lined Synchronizer Blocker Ring and Bronze Shift Fork Pad Upgrade
- For higher rpm shift capability and increased durability
- Hydraulic Clutch Actuator Kit - Modern technology with less pedal effort
- Master cylinder - high-quality
- Heavy-Duty concentric slave cylinder - 1,000,000 cycle 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
Request a Quick Quote
Why buy from Silver Sport Transmissions?
- Fast Shipping
- Popular kits are in stock for short lead times
- Complete Kits
- Why go to multiple sources for parts? Make one phone call and get things going on your project now.
- Excellent Customer Service
- Lifetime tech support
- Knowledgeable staff
- Premium Components
- Only approved, high-quality parts are sold by SST.
- 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
T56 Magnum 6-Speed PerfectFit™ Kit for B-Body
Highway Cruising Double Overdrive!
Read or print the installation manual.
When you convert to the Tremec T56 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 T56 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 PerfectFit Kit Overview
Keep your torsion bar suspension! Our kit does not require changing to coil over.
Driveshafts are no longer included on your order, but may be purchased seperately.
Tremec T56 Magnum Kit Components
- Tremec T56 Magnum 6 Speed Double Overdrive
- PerfectFit Shifter position fits inside the factory console
- 700 torque capacity wide or close ratio.
- Friction Lined Synchronizer Blocker Rings come standard for easy high RPM shifts
- Market Leading Warranty - learn more
- Optional Add the Front Shift Kit for bench seat clearance
- SFI Rated Steel Bellhousing
- Hydraulic Clutch Actuator Kit
- Sheetmetal to widen the tunnel
- Speedometer Connection
- Mechanical and electronic compatible
- Speedo Gear
- Reverse Light Connector
- Pilot Bearing
- Super heavy-duty needle roller type with lube seal for long life
- Crossmember - No need to replace torsion bar suspension. Stronger than the original equipment crossmember.
- Isolator Mount
- Rubber for vibration isolation
- Installation Hardware
- Detailed Installation Instructions - including free lifetime tech support
- Market Leading Warranty - learn more
Optional components offered
- Slip Yoke and Driveshaft
- Flywheel Billet steel, not cast steel, for improved durability and safety.
- Clutch Kit
- High performance, long life packages with easy pedal effort tailored to your needs
- Reproduction Shifter Handle
- 6-Speed Pattern Shift Ball
- Pedals
- Shift Boot & Trim Ring
- Cryogenic Gear Treatment
- Driveshaft Upgrades
Why buy from Silver Sport Transmissions?
- Fast Shipping
- Popular kits are in stock for short lead times
- Complete Kits
- Why go to multiple sources for parts? Make one phone call and get things going on your project now.
- Excellent Customer Service
- Lifetime tech support
- Knowledgeable staff
- Premium Components
- Only approved, high-quality parts are sold by SST.
- 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.
A41 4-Speed Automatic PerfectFit™ Kit for B-Body
Put it in drive and watch the gas stations go by.
The A41 4 Speed Automatic Transmission
View the Installation Manual and View the Floor Shifter Installation Manual
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
- Stand Alone 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.
COMPUSHIFT Sport
The 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
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
Each PerfectFit™ Kit comes with the correct components for your application and will include the following parts:
Driveshafts are no longer included on your order, but may be purchased seperately.
- Automatic Transmission - A41 (GM 4L60E / GM 4L65E Aftermarket replacement)
- COMPUSHIFT Sport Controller
- Dipstick and Tube - OEM Style
- Auxiliary Oil Cooler - High performance for Stage 2 and 3 only, Optional purchase for Stage 1 kits
- Bellhousing
- Lock Up Torque Converter - Electronically controlled, stall options available
- Throttle Position Sensor - Bolt-on unit provides throttle feedback to the computer with just 3 wires
- Pre-Bent Steel Cooler Lines - Replaces factory lines
- Flex Plate - SFI Approved
- Crossmember - Heavy duty formed steel, powder-coated
- Rubber Isolator - Heavy-duty isolator to minimize vibration
- Speedometer Cable - Mechanical Speedo Cable
- Hardware - High strength grade 8 fasteners standard
- Wiring - Plug & Play wiring harness
- Inspection Cover
- Reverse Light Wiring
Optional:
- Driveshaft - High strength computer balanced with sealed u-joints & slip yoke
