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Transmission Conversions

Transmission Conversion Kit
Transmission Conversion Kit

Adapter plates allow the fitment of standard shift transmission in cars that normally come with automatic transmissions. In the process of changing a car from automatic to standard shift, several items become important.

You will need a clutch pedal, speedometer interface, and comfortable shifter stick location. Next will be compatibility of rear axle ratio, physical space constraints, and other considerations like reverse lamp operation, drive shaft, rear mount, and so forth.

Choice of transmission is an important consideration. For instance, if your car has a rear axle ratio of 2.88:1, an overdrive transmission is not the best choice if you do not spend much time at 80 miles per hour or above. A better choice may be a straight-through 4-speed or 5-speed such as the Richmond Gear Street 5-speed. If you have a 3.54 or higher rear axle ratio, a World Class T-5 Borg Warner 5-speed or a Tremec 3500 may be a good choice. One transmission that is not usually suitable in any case is the S-10 GM pickup T-5 non-world class 5-speed. They have weaker gears and bearings and will not handle the torque of a good-running Jaguar engine, especially in a heavy car.

We offer 5 & 6-speed transmissions, adaptor plates, clutches, clutch pedals, speedometer adaptions, and the parts necessary to complete a successful conversion.

Rule #1: Keep Jaguar bellhousing, flywheel and starter together. A bellhousing from an XK, a starter from a Mark 2 and a flywheel from a 4.2 E-Type will not work together. All three must be compatible and from the same application.

If you have an E-Type (not 2+2 automatic) and you think you want a 5-speed, think it through. The T-5 modified transmissions offered for this conversion are not as strong and durable as the original 4-speeds. The Moss 4-speed is a very good transmission when properly rebuilt and the driver knows how to shift it. We rebuild these transmissions and offer re-machining of the synchros so they shift better than new. The original transmission can be rebuilt. The better course might be to put a taller gear in the rear to lower engine RPM at road speed. We offer rebuild service on the differentials and can change the ring and pinion to a taller ratio.

Transmissions Available

  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Tremec TKO 550 3,400.00 3,400.00 3,400.00 3,400.00
Borg Warner T-5 World Class Close Ratio, reconditioned, modified 2,500.00 2,500.00 2,500.00
Borg Warner T-56 with 5th & 6th Overdrive, reconditioned, modified       2,300.00
Richmond Gear Street Close Ratio 5-speed with Shifter       3,495.00
Richmond Gear 5-speed Overdrive with Shifter       3,995.00
Richmond Gear 6-Speed Overdrive with Shifter       4,200.00
All transmissions are "overdrive" except Richmond Gear Street 5-speed. Generally speaking, none of the above transmissions fit E-Types without extensive modification to the driveline tunnel of the car. We installed a Richmond Gear 6-speed in an E-Type and you can get an idea of the modifications involved by reading our project page about it.

Core Charges
  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
T-5 Transmission Core Charge 300.00 300.00 300.00 300.00
T-56 Transmission Core Charge       500.00



Adaptor Plates

  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Transmission to Jaguar Bellhousing 395.00      
Bellhousing to Engine Adaptor (Note: This adaptor is designed to use an aftermarket gear reduction starter.)   495.00 495.00 495.00
 

Bellhousings

  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Aluminum GM Bellhousing, reconditioned   150.00 150.00 150.00
New Steel Scattershield-type Bellhousing   349.00 349.00 349.00


Flywheels


  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Stock Steel Flywheel, reconditioned 295.00 295.00 295.00 395.00
Steel Flywheel Core Charge 150.00 150.00 150.00 150.00
New Aluminum Flywheel 595.00 595.00 595.00 595.00


Clutches

  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Jaguar 10" Clutch, 3-piece, new 395.00      
Ford/GM 10.5" Clutch, 2-piece, new   225.00 225.00  
Compatible Ford/GM Clutch Disc 210.00      
Centerforce Dual Friction Clutch   395.00 395.00 395.00


Other Parts

  XK & Early sedan 4-Speed Cars Early Auto Trans. Cars Pre-1969 & 2+2 XKE XJ-6 Sedans 1969-87 XJ-12 & XJS
Pilot Bearing 65.00 65.00 65.00 65.00
Drive Shaft Slip Yoke 125.00 125.00 125.00 125.00
Howe Central Release Bearing Assembly   199.00 199.00 199.00
Pedal Box with Clutch Pedal & Master   495.00 495.00 495.00
Pedal Box Core Charge (Auto acceptable)   150.00 150.00 150.00
Speedo Adaption (Add $100 for Ford Trans) 150.00 150.00 150.00 150.00
Gear Reduction Starter 265.00 265.00 265.00 265.00
Hydraulic Reservoir & Piping Kit   129.00 129.00 129.00
Hydraulic Reservoir only 79.00 79.00 79.00 79.00
Fastener Kit & Instructions 49.00 89.00 89.00 89.00
Shift Knobs Inquire Inquire Inquire Inquire

Clutch Pedal Installation Kit with Instructions

This kit converts an automatic pedal box to manual. Drilling and threading required. Includes rubber brake and pedal pads, clutch master cylinder and illustrated instructions. Series 1 XJ6 requires Series 2 or 3 pedal box. Inquire about Mark 1, Mark 2, 3.4 or 3.8S.

Part Number Application Price
VJW 3246/K Mark 1 & 2, 3.4S, 3.8S 185.00
VJW 9673/K 4.2 & V-12 XKE 330.00
C 44292/K XJS 325.00
CAC 3139/K XJ6 Series 1, 2 & 3 305.00


Steel Brake and Clutch Pedal Pad

To facilitate converting automatic to standard
Part Number Application Price
C 14852 Mark 1 and 2 17.95