Shift Knob Thread Sizes

The information provided on this page is to be used as a general guide. Thread sizes may vary depending on make and model of vehicle. Please measure the threads on your shifter prior to ordering. If you have any questions please contact us via e-mail or toll free at 1-866-906-7801.

Performance Aftermarket Shifters
B&M™ (All models except Quick Click™): 1/2 - 20
B&M Quick Click™: 1/2 - 13
Barton - Camaro Shifter™: 3/8 - 16
Barton - Mustang Shifter 2011BM-1™: 12mm x 1.25
EMPI Trigger Shifter™: 3/8 - 24
Ford Racing Short Shifter™ for '05 to '09 GT: 3/8 - 16
Gennie Shifter™: 5/16 - 18
Gennie Shifter™ Commander: 7/16 - 20
Gennie Shifter™ Lo-Dapt™: 3/8 - 16
Hurst™ - Auto/Stick1, Auto/Stick3, Billet/Plus, Competition Plus(newer): 3/8 - 16
Hurst™ - Pro-Matic, V-Matic, Vertical Gate (1987 and later): 3/8 - 16
Hurst™ - Competition/Plus (older), Indy Matic I, Indy 3 Speed, Indy SSA, Saf-T-Trigger: 3/8 - 24
Hurst™ - Quarter Stick, Quarter Stick II: 7/16 - 20
Hurst™ - Pro-Matic, V-Matic, Vertical Gate (all prior to 1987): 1/2 - 13
Lenco™: 5/16 - 18
Lokar™: 3/8 - 16, 3/8 - 24
Long™: 7/16 - 20
LSR Performance™ - Tri-Ax Short Throw: 12mm x 1.75
McLeod™: 3/8 - 24
MGW Camaro Short Throw Shifter™: 12mm x 1.75, 16mm x 1.50
MGW Camaro Generation 5 Short Throw Shifter™: Non-Threaded
MGW Camaro Retro Shaft Handle™: 12mm x 1.75
MGW Corvette Generation 5™: 9/16 - 18
MGW Corvette Generation 6™: Non-Threaded
MGW Mustang Short Throw Shifter™: 12mm x 1.25, 12mm x 1.75
MGW Mustang GT500 Shifter™: 12mm x 1.25, 12mm x 1.75, 10mm x 1.25
Mopar Short Throw Stick for '09-'11 Dodge Challenger™: 3/8 - 16
Mr. Norms Garage - Dodge Challenger Shifter Stick™: 7/16 - 20
MTI Racing Six Shooter™: 9/16-18
Roush Mustang Short Throw™: 12mm x 1.25
Scat™- Drag Fast: 3/8 - 16
Serco™: 1/2 - 13
Shelby American™ - Generation 1 (up to 2011): 12mm x 1.75
Shelby American™ - Generation 2 (introduced in 2011): 12mm x 1.25
Steeda™ '05 to '10: 12mm x 1.75
Steeda™ '11 to '12: 12mm x 1.25
TCI Fast-Gate™: 7/16 - 20
TCI Street Fighter™: 7/16 - 20
TCI Street Fighter for '05-'08 Mustang™: 3/8 - 16
Winters™ - Sidewinder (Standard): 1/2 - 13

Motorcycles
Harley Davidson­™: 3/8 - 24
Indian™: 3/8 - 24

Domestic Vehicles
Chevrolet Camaro™ - 1967 to 1968: 5/16 - 18
Chevrolet Camaro™ - 1969 to 1992: 3/8 - 16
Chevrolet Camaro™ - manual 1993 to 2002: 16mm x 1.50
Chevrolet Camaro™ - manual 2010 to present: Non-threaded, requires a non-threaded adapter kit, call for options
Chevrolet Chevelle™ - 4 speed: 9/16 - 18
Chevrolet Chevy II™ - 4 speed: 9/16 - 18
Chevrolet Corvette™ C1 - 1953 to 1962: 3/8 - 16
Chevrolet Corvette™ C2 - 1963 to 1967: 5/16 - 18
Chevrolet Corvette™ C3, C4, C5 - manual 1968 to 2004: 9/16 - 18
Chevrolet Corvette™ C6 - manual 2005 to present: Non-threaded, requires a special C6 adapter, call for information
Chevrolet S10™ Truck - 1997: Non-threaded, requires a non-threaded adapter kit, call for options
Chevrolet Impala Sport Coupe™ - 1959 4 speed: 5/16 - 18
Chevrolet Impala™ - 1964 4 speed: 9/16 - 18
Chevrolet™ Truck - 1936 to 1946: 3/8 - 24
Chevrolet™ Truck - 1967 to 1972: 3/8 - 24
Chrysler™ - manual: 8mm x 1.25
Dodge Challenger™ newer - automatic: Non-threaded, requires a non-threaded adapter kit, call for options
Dodge Challenger™ newer - manual: 8mm x 1.25
Dodge Charger™ newer - automatic: Non-threaded, requires a non-threaded adapter kit, call for options
Dodge Charger™ newer - manual: 8mm x 1.25
Dodge Dart™: 3/8 - 24
Dodge Dakota™: 10mm x 1.50
Dodge Magnum™ - manual: 8mm x 1.25
Dodge™ Truck - 1946 to 1955 - manual: 5/16 - 24
Dodge Cummins™ Truck - 2006 - manual: 10mm x 1.50
Dodge Ram 2500™ Truck - 2006 - manual: 10mm x 1.50
Dodge Viper™ - manual: 1/2 - 20
Ford F150™ - manual: Non-threaded, requires a non-threaded adapter kit, call for options
Ford Fairlane™: 1/2 - 20
Ford Falcon™: 1/2 - 20
Ford Focus™ - manual 2012: 12mm x 1.25
Ford GT™ - manual 2005: 12mm x 1.75
Ford Model A™ - 1929 to 1931: 5/16 - 24
Ford Mustang™ - manual 1964 to 1969: 1/2 - 20
Ford Mustang™ - manual 1979 to 2004: 12mm x 1.75
Ford Mustang™ - manual 2005 to 2013: 12mm x 1.25
Ford Mustang Shelby™ - manual 2007 to 2009 (factory installed): 12mm x 1.25
(Note: For Shelby American shifters see the Performance Aftermarket Shifters section listed above)
Ford Mustang Shelby™ - manual 2010 to 2013 (factory installed): 10mm x 1.25
Ford Mustang Shelby KR™ - manual 2008: 12mm x 1.75
Ford Mustang Shelby Super Snake™ - manual 2007: 12mm x 1.75
Ford Pantera™ - manual: 8mm x 1.25
Ford Ranger™: Non-threaded, requires a non-threaded adapter kit, call for options
Ford Probe™ - manual: 10mm x 1.25
Ford Torino™ - manual 1972: 7/16 - 20
GMC Sonoma™ - 1992: 10mm x 1.50
GMC™ Truck - 1936 to 1946: 3/8 - 24
Jeep™ CJ5, CJ6, CJ7, CJ8 early 1960's models: 5/16 - 24
Jeep™ CJ5, CJ6, CJ7, CJ8 later models: 3/8 - 24
Jeep Cherokee™: 10mm x 1.50
Jeep Wrangler™ (YJ) '87-'95: 3/8 - 16
Jeep Wrangler™ (TJ) '97-'06: 10mm x 1.50
Plymouth™ through 1965: 3/8 - 24
Plymouth™ 1966: 9/16 - 18
Plymouth Barracuda™: 9/16 - 18
Plymouth PT Cruiser™: 3/8 - 16
Plymouth Valiant™: 3/8 - 24
Pontiac Fiero™ - manual: 16mm x 1.50
Pontiac Firebird™ - manual through 1967 : 5/16 - 18
Pontiac Firebird™ - manual: 16mm x 1.50
Pontiac GTO™ - manual '04-'06: Non-threaded, requires a non-threaded adapter insert w/ set screws
Pontiac Tempest™ 4 speed: 3/8 - 16
Saturn™ - manual: Non-threaded, requires a non-threaded adapter kit, call for options

Import Vehicles
Acura™ - manual: 10mm x 1.50
Audi™: 12mm x 1.50
Austin Healy™ - 6 cylinder: 3/8 - 16
BMW™: Non-threaded, requires a non-threaded adapter kit, call for options
Datsun™ 240Z, 260Z, 280Z - manual: 8mm x 1.25
Datsun™ 300ZX - manual: 10mm x 1.25
Ferrari™ - manual: 10mm x 1.25
Geo Storm™ - manual: 10mm x 1.25
Geo Tracker­­­­™ - manual: 12mm x 1.25
Honda™ - manual: 10mm x 1.50
Honda Pilot™ - automatic (column): 12mm x 1.25
Hyundai™ - manual: 10mm x 1.25
Isuzu Impulse™ - manual: 10mm x 1.25
Jaguar™ - manual through 1964: 5/16 - 18
Jaguar™ - manual: 8mm x 1.25
Kia Forte™ - manual: 10mm x 1.25
Lexus™ - automatic: 8mm x 1.25
Lexus™ - manual: 12mm x 1.25
Lotus Elise™ - 2005 to Jan. 2009: 10mm x 1.50
Lotus Elise™ - after Jan. 2009: 12mm x 1.50
Lotus Exige™ - 2005 to Jan. 2009: 10mm x 1.50
Lotus Exige™ - after Jan. 2009: 12mm x 1.50
Mazda™ - most models - automatic: 8mm x 1.25
Mazda™ - most models - manual: 10mm x 1.25
Mazda Miata™ - manual: 10mm x 1.25
MG Midget™ & 1100 Sedan: 5/16 - 18
MGB™: 3/8 - 16
Mitsubishi™ - manual: 10mm x 1.25
Mini Cooper™ - manual: Non-threaded, requires a non-threaded adapter kit, call for options
Nissan™ - most models - manual: 10mm x 1.25
Subaru™ - automatic: 10mm x 1.25
Subaru™ - manual: 12mm x 1.25
Suzuki Samari™ - manual: 12mm x 1.25
Toyota™ - most models - automatic: 8mm x 1.25
Toyota™ - most models - manual: 12mm x 1.25
Toyota 4 Runner™ - automatic: 8mm x 1.25
Toyota Avalon™ - automatic: 8mm x 1.25
Toyota Camry™ - manual: 12mm x 1.25
Toyota Celica™ - manual: 12mm x 1.25
Toyota Corolla™ - automatic: 8mm x 1.25
Toyota Corolla™ - manual: 12mm x 1.25
Toyota Scion™ - manual: 12mm x 1.25
Toyota Supra™ - manual: 12mm x 1.25
Toyota Tacoma™ - manual: 12mm x 1.25
Toyota Tundra™ - manual: 12mm x 1.25
Truimph TR4™ - manual '64: 7/16-32
Volkswagon Beetle™ after '68: 12mm x 1.50
Volkswagon Ghia™ after '68: 12mm x 1.50
Volkswagon Golf™: 12mm x 1.50
Volkswagon Jetta™: 12mm x 1.50
Volkswagon Rabbit™: 12mm x 1.50
Volvo™ 140 Series: 3/8 - 16

Shift Knob Adapter Installation Instructions:

1. Determine correct Adapter and Jam Nut size.
2. Clean all threads prior to installation.
3. Thread Jam Nut onto shifter until at least 1/2" of threads are visible above Jam Nut.
4. Place flat washer on shifter above Jam Nut (for smaller shifter diameters only).
5. Thread Adapter onto shifter until it touches the Jam Nut (or flat washer).
6. Install Shift Knob onto Adapter until in becomes snug.
CAUTION - DO NOT OVER-TIGHTEN.
7. Turn knob counter-clockwise until graphics are in desired position.
8. Turn Jam Nut counter-clockwise until it is tight against bottom of Adapter.
DO NOT ALLOW SHIFT KNOB TO "BOTTOM OUT" ON SHIFTER SHAFT.
DAMAGE COULD RESULT WHICH IS NOT COVERED BY WARRANTY.
Contact Speed Dawg LLC with any technical questions toll free 1-866-906-7801.