Aston Service Dorset : Aston Martin Lagonda Official Parts Manufacturer and Distributer.

	Pre War Lagonda DB Lagonda + Rapide DB2 + DB2/4 MkI - MkII DB2/4 MkIII DB3S DB4 + DB4 GT DB5 + DB6 DBS + AM Vantage DBSV8 + AMV8 + V8 Lagonda Virage + V8 Vantage DB7

  Transmission

  Clutch (Plate J)
  Gearbox Case (Plate K)
  Gearbox and Geartrain (Plate L)
  Rear Axle (Plate M)

  Engine

  Fuel, Cooling + Exhausts

  Suspension + Steering

  Brakes + Pedal Gear

  Electrical + Instruments

  Chassis, Frame, Body, etc.

For all Parts Catalogues, Workshop Manuals and Instruction Books please follow the link to the technical publications page.

A selection of the most frequently asked for Transmission parts are shown below as they appear in the Parts Book (Part No. 20-43-105), anything that is not there, contact us and we will be happy to advise on stock and availability:

The clutch was originally a 10" Borg and Beck single dry plate with coil springs, these are no longer available new and have now been replaced with the below diaphragm clutch, far superior and prevents the slippage that occurred with the original.

For further information on what is required to convert and current prices please contact us

		64-11-753 20-11-702H		Balance Unit Clutch Assembly 9 1/2" Release Bearing and Cup Assembly, Required to Convert the 91/2" Clutch Assembly to Fit DB4

		20-33-105		Clutch Slave Cylinder

		20-11-702		Release Bearing and Cup Assembly - Standard

The following is a selection of original replacement gearbox case parts that are available, for anything else that isn't below please contact us

		20-41-129 20-41-223 20-41-125		Top Cover Gear Lever Retaining Plate Spring Inspection Plate

		20-41-130 20-41-131 20-41-133 20-41-134		Selector Rod 1st and 2nd Speed Selector Rod 3rd and 4th Speed 2nd Speed Stop 3rd Speed Stop

		20-41-132 20-41-139 20-41-135 20-41-141		Selector Rod Reverse Reverse Selector Reverse Stop Setscrew for Forks

		20-41-152 20-41-154 20-41-195 20-41-156		Change Speed Lever RHD Change Speed Lever LHD Special Locknut 5/16" BSF Gear Lever Retaining Plate

		20-41-216 20-41-215 20-41-217 20-41-214		Reverse Operating Lever Shaft for Reverse Fork Bolt for Reverse Lever Reverse Fork

		20-41-138 20-41-162 20-41-141 20-41-142		Fork 3rd and 4th Speed Dipstick Knob Setscrew Forks Detent Spring

		20-41-147 20-41-145 20-41-148 20-41-102		Bush - Interlock and Reverse Stop Bush - Interlock Spring - Plunger Spring Change Speed Lever

The following is a selection of original replacement gear parts that are available, for anything else that isn't below please contact us

		20-41-163 20-41-224 20-41-168		Primary Shaft Clutch - 3rd and 4th Speed Retaining Ring

		20-41-165 690345 20-41-166 114426		Tabwasher Ball Bearing Locknut Oil Seal

		20-41-170 20-41-240 690335 20-41-174		Mainshaft - Up to DB4/190 Mainshaft - From DB4/191 Needle Roller, 3mm Key - For Hub

		20-41-224 20-41-168 20-41-176 20-41-244		Clutch - 3rd and 4th Speed Retaining Ring Synchro Spring - 1st and 2nd Speed - Short Saddle

		20-41-225 20-41-178 20-41-180		Synchro Cone - 1st, 3rd and 4th Speed Sliding Clutch - 3rd and 4th Speed Spacing Bush

		20-41-230 20-41-244 20-41-183		Synchro Spring - 3rd and 4th Speed - Long Saddle Distance Piece - 1st and 2nd Speed

		20-41-229 20-41-226 20-41-172 20-41-185		Synchro Cone - 2nd Speed Gear - 2nd Speed Distance Piece, 3rd and 4th Speed Hub - 1st and 2nd Speed Clutch

		42-41-191 690345 20-41-192 115757		Speedometer Gear Wheel - Wide Ratio - Overdrive Ball Bearing Retaining Washer - Flange Oil Seal - for Coupling Flange

		690336 20-41-204 690338 20-41-205		Circlip, External 1 3/4" Rollers (88 Rollers per Cage) Needle Thrust Bearing Front Support Bush

		20-41-208 20-41-210 20-41-211 20-41-213		Reverse Shaft Thrust Washer Rear Bearing Bush Distance Piece

Below is a selection of original parts that we have in stock for the Rear Axle, normally in a ratio of 3.54:1 (except USA), alternatives were offered in Series I cars of 3.31:1 and 2.93:1 with 3.77:1 (standard USA) being added from Series IV.

		20-26-745 20-26-744 20-26-767 20-26-752		Taper Roller Bearing - Axle Shaft Oil Seal - Axle Shaft Oil Seal - Hub Joint - Hub Oil Seal

		20-26-743 20-26-753 20-26-758 20-26-759		Axle Half Shaft Key Axle Shaft Split Pin 5/32" Slotted Nut 7/8" UNF

		20-26-737 20-26-764 20-26-721 20-26-705		Pinion Oil Seal Joint Cover Filler Plug Differential Taper Roller Bearing