New Products

MT1601  1935 Chevy 208 to 1984-92 S10 T5
$255.00

MT1601 1935 Chevy 208 to 1984-92 S10 T5

Speed Gems

Materials Included: (1) Adapter Plate - 1935 Chevy 208 to 1984-92 S10 T5(4) FHSCS 3/8-16 x 1-1/4(4) SHCS 7/16-14 x 1   *Matching our adapter kits w...

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$255.00
MT1501  Ford Car with Steel Bellhousing to 1984-92 Chevy S10 T5
$255.00

MT1501 Ford Car with Steel Bellhousing to 1984-92 Chevy S10 T5

Speed Gems

Materials Included: (1) Adapter Plate Ford Car with Steel Bellhousing to Chevy S10 T5(4) FHSCS 7/16-20 x 1-1/4(4) SHCS 7/16-14 x 1 *Matching our a...

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$255.00
BU802  Buick Flexplate and Adapter for 1963 & Older Buick 401/425 to 1964 & Newer Automatic Transmission
from $179.00

BU802 Buick Flexplate and Adapter for 1963 & Older Buick 401/425 to 1964 & Newer Automatic Transmission

Speed Gems

Materials Included: (1) Buick Tapered Pilot Bushing (PB10009)(1) Flexplate (FP10003)(1) 166W-tooth Ring-gear (RG10004)(1) Balance Weight for Buick ...

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from $179.00
MT1201  1995-98 Ford T5 to Chevy 55 & newer Bellhousing
$355.00

MT1201 1995-98 Ford T5 to Chevy 55 & newer Bellhousing

Speed Gems

Materials Included: (1) Adapter plate - 1995-98 Ford T5 to Chevy 55 & newer Bellhousing(1) Bearing Race Shim(2) FHSCS 1/2-13 x 2(2) HCS 3/8-16 ...

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$355.00
LA101  LaFrance V12 to Chevy V8 Transmission
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$2,500.00

LA101 LaFrance V12 to Chevy V8 Transmission

Speed Gems

*CALL TO ORDER* Speed Gems806H S. Division St., Waunakee, WI 53597PHONE: (763) 767-4480EMAIL:  sales@transmissionadapters.com

$2,500.00
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SE101 Seagrave V12 to Chevy V8 Transmission
Sold out
$1,950.00

SE101 Seagrave V12 to Chevy V8 Transmission

Speed Gems

*CALL TO ORDER* (1) Adapter Plate – Seagrave V12 to Chevy V8 Transmission(1) Crank Adapter - Seagrave V12 to Chevy V8 Transmission(1) Flexplate(1) ...

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$1,950.00
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FO2401  Ford 2015-2020 2.0L/2.3L ECOBoost to Chevy Automatic Transmission
$1,550.00

FO2401 Ford 2015-2020 2.0L/2.3L ECOBoost to Chevy Automatic Transmission

Speed Gems

Materials Included: (1) Adapter Plate Ford Ecoboost 2.0/2.3 to Chevy(1) Crank adapter(1) Torque converter spacer(1) Torque converter drive plate(2)...

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$1,550.00
MT1401  Buick Straight-8 Bellhousing to 1984-92 Chevy S10 T5
$495.00

MT1401 Buick Straight-8 Bellhousing to 1984-92 Chevy S10 T5

Speed Gems

Note: THE TORQUE TUBE WILL NEED TO BE CONVERTED TO A MODERN DRIVESHAFT TO BE ABLE TO ADAPT TO A NEWER TRANSMISSION TAILSHAFT FLANGE OR TRANSFER CAS...

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$495.00
BU1002  Buick 401 & 425 Nailhead Heavy Duty Cast-Aluminum Stick Kit
from $1,450.00

BU1002 Buick 401 & 425 Nailhead Heavy Duty Cast-Aluminum Stick Kit

Speed Gems

*Please indicate what year your engine is in the comments when ordering.1957-63 has a 2.00" Crank I/D1964-66 has a 1.70" Crank I/D*Please indicate ...

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from $1,450.00
FO2301  Ford 223 to Chevy Automatic Transmission
$1,250.00

FO2301 Ford 223 to Chevy Automatic Transmission

Speed Gems

Materials Included:  (1) Adapter plate - 223 to Chevy(1) Crank adapter - Ford 239 to Chevy auto trans(1) Flexplate(1) High torque mini starter(4) S...

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$1,250.00
MT1301  Buick Straight-8 to 1993-96 Chevy S10 T5
$395.00

MT1301 Buick Straight-8 to 1993-96 Chevy S10 T5

Speed Gems

Note: THE TORQUE TUBE WILL NEED TO BE CONVERTED TO A MODERN DRIVESHAFT TO BE ABLE TO ADAPT TO A NEWER TRANSMISSION TAILSHAFT FLANGE OR TRANSFER CA...

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$395.00
FO202 Ford/Mercury FE 410/428 to Ford Small Block AOD
from $1,300.00

FO202 Ford/Mercury FE 410/428 to Ford Small Block AOD

Speed Gems

Note: This kit will also work for a C5, C6. If you plan on using a C4, be sure that you have the larger 164 tooth flexplate style bellhousing (For...

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from $1,300.00
Speedometer Cable Adapter for Ford Transmission  (#SA10001)
$110.99

Speedometer Cable Adapter for Ford Transmission (#SA10001)

Speed Gems

Speedometer Cable Adapter for Ford Transmission

$110.99
EC201  ECOTEC LTG and LCV (2013 & newer) to Chevy Automatic Transmission
from $1,450.00

EC201 ECOTEC LTG and LCV (2013 & newer) to Chevy Automatic Transmission

Speed Gems

*CALL TO ORDER* Speed Gems806H S. Division St., Waunakee, WI 53597PHONE: (763) 767-4480EMAIL:  sales@transmissionadapters.com *This Kit is designe...

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from $1,450.00
Universal Detent Cable for the Ford AOD Transmission  (#UDC10001)
$149.99

Universal Detent Cable for the Ford AOD Transmission (#UDC10001)

Speed Gems

This product is needed if you are installing the Ford AOD Transmission into anything other than a stock application.

$149.99
MG & Metropolitan to Chevy V8 Transmission (Kit #MG101)
Sold out
$1,550.00

MG & Metropolitan to Chevy V8 Transmission (Kit #MG101)

Speed Gems

*CALL TO ORDER* Speed Gems806H S. Division St., Waunakee, WI 53597PHONE: (763) 767-4480EMAIL:  sales@transmissionadapters.com

$1,550.00
Sold out
AMC Rambler 6-Cylinder to Chevy Automatic V8 Transmission (Kit #AMC101)
from $1,100.00

AMC Rambler 6-Cylinder to Chevy Automatic V8 Transmission (Kit #AMC101)

Speed Gems

*CALL TO ORDER* Speed Gems806H S. Division St., Waunakee, WI 53597PHONE: (763) 767-4480EMAIL:  sales@transmissionadapters.com

from $1,100.00
TH10001 - 700R4 Short Extension Housing
$395.00

TH10001 - 700R4 Short Extension Housing

Speed Gems

Allows for building a 27-inch long 700R4 transmission utilizing a 4x4 output shaft. Comes with bushing, seal and O-ring. NOTE:  27-inch yoke must b...

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$395.00
Speedometer "Bullet" for TH350 Transmission  (#SPB10001)
$49.99

Speedometer "Bullet" for TH350 Transmission (#SPB10001)

Speed Gems

Cures leaking Speedometer Cable attachment point for the TH350 Transmission. Brand new part comes with Seal and O-ring.  

$49.99
Speedometer Cable Kit for Ford  (#SCK10001)
$119.99

Speedometer Cable Kit for Ford (#SCK10001)

Speed Gems

Useful for putting Ford AOD Transmissions into 1955 - 1957 T-Birds and other Ford Products.

$119.99
Speedometer Cable  (#SC10001)
$49.99

Speedometer Cable (#SC10001)

Speed Gems

This cable has the standard GM thread on the one end and 1950's era thread, that was common on all car lines, on the other. Example: Putting a 700R...

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$49.99
Timing Tape Kit  (#TTK10001)
$14.99

Timing Tape Kit (#TTK10001)

Speed Gems

Used for engines that have timing marks on the flywheels that are being replaced, like the 216/235 Chevy 6-Cylinder.

$14.99
Right-Angle Speedometer Drive/Adapter  (#SD10001 & #SGR10001)
$110.99

Right-Angle Speedometer Drive/Adapter (#SD10001 & #SGR10001)

Speed Gems

Useful for when there isn't enough space for the Speedometer to curve/bend around desired areas.

$110.99
OL201  1957-1964 Oldsmobile 371/394 to Chevy Manual Transmission
from $1,550.00

OL201 1957-1964 Oldsmobile 371/394 to Chevy Manual Transmission

Speed Gems

Please Note:  We have back-ordered bellhousing castings due in 4-5 weeks.  Please give us a call for confirmation. NOTE: Due to the nature of the ...

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from $1,550.00